The influx of new standards over recent years has led to a mass of combinations when it comes to bottom brackets, cranks, and chainrings. There’s a panacea, however, and it goes by the name XMOD. The XMOD crankset from Miranda is a study in how to do cranksets: with a coherent modular setup, riders will always find a pleasing combination of spindle, spider, and cranks. Guaranteeing the ultimate flexibility, this modular crankset also enables convenient upgrades and peace of mind that compatibility won’t be sacrificed when changing your frame. Instead of having to buy a new crankset, by using the XMOD system you can quickly switch from 2x to 1x, exchange the axle to suit different bottom brackets, or alter the chainline, which saves both money and grey hairs. The XMOD also ranks amongst the lightest, enduro-specific cranks out there.
When the idea of e-bikes was still an oddity rather than a reality, Miranda peered into the future and saw that e-mobility would catch on fire. Fast forward to today, when Miranda & Irmão, Lda. publicly introduced its new Shimano-compatible e-bike cranks, and you'll see how widespread the trend has become. Miranda, which has a well-established reputation as a major original equipment supplier for most of Europe’s top bicycle brands, has been flexing its own creative muscle by designing and manufacturing its own brand of cranksets for both end users and OE partners.
The new cranks cater to both profiles of Miranda’s loyal customers: those who want state-of-the-art engineering and manufacturing, plus the option to create a custom design for volume orders; and those who want to upgrade their bike with an unprecedented, lightweight crankset. Both OE partners and end users will discover the possibilities in the cranks described below.
Shimano-compatible E-bike Cranks
E-bike drive systems have specific compatibility requirements, which are often unique to the manufacturer. Compatible with Shimano STEPS e-bike systems, Miranda’s award-winning Delta S crank is manufactured through a proprietary cold-forging process with cutting-edge metal processing technologies. We have applied a dedicated engineering process to eliminate weak points by evenly distributing loads so that the resulting crank offers both exceptional resistance to fatigue and high-impact stress, and 100% compatibility with Shimano’s STEPS systems for city, mtb, and trekking.
The STEPS-compatible Delta S is available in either Standard or Plus finishes with crank lengths from 150 mm – 170 mm.
ÁGUEDA, Portugal - Months after quietly testing new crank designs, today Miranda & Irmão, Lda. publicly introduced new carbon fiber crank arms for its award-winning XMOD road crankset. Miranda, which has a well-established reputation as a major original equipment supplier for most of Europe’s top bicycle brands, has been flexing its own creative muscle by designing and manufacturing its own brand of cranksets for both end users and OE partners.
The new cranks cater to both profiles of Miranda’s loyal customers: those who want state-of-the-art engineering and manufacturing, plus the option to create a custom design for volume orders; and those who want to upgrade their bike with an unprecedented, lightweight crankset.
XMOD Carbon Fiber Road Cranksets
XMOD, the world’s first totally modular crankset, now becomes one of the world’s lightest cranksets after trimming 100 grams off its predecessor. The new design still allows you to choose the spindle, spider, and crank arms independently for a customized crankset; only now Miranda gives you carbon fiber crank arms as an option. XMOD, which was introduced in 2017, has stayed loyal to its titanium axle and clever chainring design that locks flush with the right crank arm for greater durability, stiffness, and power transfer. The resulting reinforced fit extends the life of both the cranks and chainrings. Compatible with all standard bottom brackets, the XMOD crankset for road allows for almost limitless crankset combinations. Available soon from Miranda’s online store at https://mirandabikeparts.com/en/shop/
When the bike industry held its annual trade show last July, Miranda & Irmão, Lda. publicly introduced new carbon fiber e-bike cranks with a claim to be the lightest dedicated e-mtb cranks around. Miranda, which has a well-established reputation as a major original equipment supplier for most of Europe’s top bicycle brands, has been flexing its own creative muscle by designing and manufacturing its own brand of cranksets for both end users and OE partners.
The new cranks cater to both profiles of Miranda’s loyal customers: those who want state-of-the-art engineering and manufacturing, plus the option to create a custom design for volume orders; and those who want to upgrade their bike with an unprecedented, lightweight crankset. Both OE partners and end users can discover the possibilities in the cranks described below.
Carbon Fiber E-mtb Cranks
E-mtbs’ unique demands for cranks that are durable without adding extra weight, yet are compatible with the bike’s power source, and consequently its warranty, suddenly require cranks with specific characteristics. With a claimed weight of 288 g for 170 mm crank arms, the design and materials composition make these carbon fiber e-mtb-ready cranks — with their superior strength-to-weight ratio — the lightest dedicated e-mtb cranks available. The cranks have been designed and engineered to produce a carbon fiber structure featuring an internal, proprietary crash-resistant composite. Choose between either 165 mm or 170 mm crank arms for optimal e-mobility. The cranks will be available soon via Miranda's online store, https://mirandabikeparts.com/en/shop/
Next week the Taipei Cycle Show will welcome bike brands from around the world to the island of Taiwan for the annual industry trade show that attracts an overwhelming number of exhibitors based nearby. Miranda will be among them to show off examples of its tremendous manufacturing capacity at its factory in Águeda, Portugal. If you hadn't heard, Miranda supplies some of the most-recognized bike brands with cranks and chainrings, as well as designs clever products, like XMOD — the world's first totally modular crankset, that bear the Miranda name. If you're planning on being at the show from October 31-November 3, drop by Miranda's expo space, L1216, and have a look for yourself!
ChainFlow® 3D Chainrings
Miranda’s ChainFlow® 3D chainrings feature a patented T-shaped tooth design that prevents chain drops and provides superior chain retention even in the muddiest conditions to yield advantages that a narrow-wide tooth profile simply cannot offer. Chainring teeth engage directly with the chain’s rollers for instant contact and securely seat the chain for maximum surface contact, better chain load distribution and guidance, and superb wear resistance since the overall operation is smoother. Achieve buttery fluidity and endless flow when mountain biking with ChainFlow® 3D chainrings.
Dedicated Aluminum E-bike Cranks
Miranda's award-winning aluminum e-bike cranks are produced according to specific compatibility requirements that are often unique to each e-bike manufacturer. Each crank is made through a proprietary cold-forging process with cutting-edge metal processing technologies. A dedicated engineering process to eliminate weak points by distributing loads is seamlessly applied to produce a lightweight crank without compromising its exceptional resistance to fatigue and high-impact stress. Thanks to its tremendous production facility in Portugal, Miranda can spec most e-bike models through its wide range of crank designs. Miranda also welcomes special requests as well. Miranda’s aluminum e-bike cranks can be found on some of the most celebrated e-bike brands around.
XMOD Direct Mount Cranksets for Road
XMOD, the world’s first totally modular crankset, is now making things even simpler with a double chainring combo that reacts instantly to pedaling force for a smoother ride experience. In addition to losing weight compared to standard double or triple ring+spider+bolt combinations, a direct mount double chainring for road offers improved durability, stiffness, and power transfer. CNC machined from a solid block of aluminum, the chainring combo mounts directly onto the spindle for better rigidity so that pedaling force is transferred instantly to the drivetrain to propel you forward. XMOD’s titanium axle and clever chainring design locks flush with the right crank arm resulting in a reinforced fit that extends the life of both the cranks and chainring. Compatible with all standard bottom brackets, the XMOD direct mount crankset for road comes in 50/34 and 53/39 chainring combinations.
XMOD Direct Mount Cranksets for MTB
If choices are key to unlocking off-road adventure, XMOD Direct Mount MTB Crankset allows you to choose the spindle, crank arms, and direct mount chainring independently for a fully customized crankset specific to you. In addition to losing weight compared to standard ring+spider+bolt combinations, a direct mount 1x chainring with ChainFlow® 3D technology reacts instantly to your pedaling force for a smoother ride experience. T-shaped chainring teeth engage directly with the chain’s rollers for instant contact, and securely seat the chain for maximum surface contact, and better chain load distribution and guidance. Mounting the chainring directly onto the spindle improves rigidity so that pedaling force is transferred instantly to the drivetrain to propel you forward. The XMOD direct mount concept for mountain bike offers a spiderless 1x11 or 1x12 option and patented ChainFlow® 3D chainrings for cross-country, enduro, and downhill. Compatible with all standard bottom brackets, as well as fat bikes and Boost.
From October 31 - November 3, Miranda & Irmão participated in the 2018 Taipei Cycle Show in Taiwan. Miranda’s event presence was inline with its international marketing strategy to promote the Portuguese brand at this significant global event
This edition witnessed a date change by organizers in order to fit better with the launch periods of the biggest brands.
For Miranda this was another opportunity to exhibit at the Taipei Cycle Show, Taiwan’s bicycle industry trade show where the latest innovations were presented.
It should be noted that in Portugal, development of the two-wheeled sector has seen strong growth, and has emerged as the third largest producer in the latest European rankings, and the first-ranked European exporter. Earning those distinctions is one thing, maintaining them is quite another and Portugal will embrace challenges to sustain growth and maintain its position in European production rankings. An additional nationwide ambition is to gain greater market share in terms of added value; it is Miranda & Irmão's intention to seize on all initiatives in order to achieve these goals.
Following this year’s Taipei Cycle Show, João Filipe Miranda, Miranda & Irmão’s CMO, reminded us that the brand "is already a routine exhibitor in this annual show,” and stressed that it is "extremely important for the sector at the international level, to treat it as one of the world’s biggest bicycle shows."
About Miranda & Irmão
With a European factory located in Portugal, in the municipality of Águeda, and with more than 65 years in the market, Miranda & Irmão works in collaboration with the best brands and manufacturers in the bicycle industry to produce customized solutions with standards of quality, durability and design. It is a Portuguese brand specializing in the development of high-end parts for bicycles, predominantly for E-Bikes.
Recognized as one of the world's leading bicycle components, it was Miranda & Irmão who developed and created the world’s first and only fully modular crankset, Miranda’s XMOD® - an innovation that allows all parts to be independently interchangeable, which has redefined the concept of cranksets.
Inline with this sensational product, Miranda’s XMOD® was awarded the 2018 Design & Innovation Award in the component category.
When Miranda gets personal, you are the winner. Thanks for purchasing an XMOD crankset, which lets you personalize your crank arms and chainrings according to your preferences. Now let’s get your XMOD installed so that you can hit the road or trails ASAP, here’s how:
1. Open the box – Otherwise how will you know what’s inside?
2. Inspect the parts – You should find two crank arms (left and right), chainring(s), and spindle.
3. You’ll need these – Have on hand an 8 mm allen key, a torque wrench, and grease (optional: a flat brush to apply grease).
4. Apply grease – Apply a small amount of grease just inside the bottom bracket on each side. Then apply a little grease to each end of the spindle.
5. Insert the spindle – Slide the spindle into the bottom bracket until it’s correctly positioned.
6. Install the chainring or spider — Attach the chainring or spider to spindle.
7. Install the right crank arm — Attach the drive-side crank arm to the spindle, tighten to the recommended 56-64 Nm.
8. Install the left crank arm — Attach the non drive-side crank arm to the spindle, tighten to the recommended 56-64 Nm.
9. Replace the chain — Position the chain on your chainring, give the cranks a few turns to seat it correctly, and off you go!
10. We’ve made a video to demonstrate these steps and hopefully make it easier for you to install your XMOD crankset and get going even faster!
Watch it here:
If it feels like the air is more electric these days, it may be because warm temperatures have energized people to spend more time outdoors. Or it could be that electric bikes have mobilized millions of people to leave their cars at home, or bypass public transportation to take advantage of e-bikes and boost the quality of their lives. If you’d like to join this new class of bike rider and experience a freedom only attainable by bike, here’s how to choose your first e-bike.
What is an e-bike?
Any pedal bicycle that’s assisted by a motor powered by a battery to reach a predetermined maximum speed can generally be called an e-bike. There are different levels of power assistance that exist within the e-bike category, and they are classed as pedal-assist bikes called “pedelecs” or “s-pedelecs.” Pedelec motors won’t exceed 250 watts and will shut off once a maximum speed of 25 km per hour (15.5 mph) is reached. S-pedelec motors can exceed 250 watts, and reach 45 km per hour (28 mph) before the motor shuts off. Get to know the differences because laws defining e-bikes and regulating their use vary from country to country. While you’re checking out e-bike laws for your country, be sure to see if your government subsidizes e-bike purchases because some national governments are providing purchasing assistance to e-bike buyers in an effort to reduce a dependence on cars.
How you choose an e-bike depends on the bike’s intended purpose. Will your e-bike be used for recreation or for utility? Either way, it’s important to consider where you intend to ride (road or off-road), what kind of distance you plan on riding, and how much time you plan on spending on the bike. These considerations implicate the type of e-bike you’re shopping for and the motor and battery used to power it.
Miranda supplies many e-bike manufacturers with e-bike-specific components like cranks, chainrings, sprockets, and chainguards. As e-bikes become more sophisticated, so do the parts that outfit them and Miranda has matched pace by designing and manufacturing products specifically for e-bikes like carbon fiber cranks, chainrings with ChainFlow® technology, and spiders that are unique to the leading e-bike motors.
Miranda introduces the lightest dedicated e-mtb cranks, mirandabikeparts.com/en/culture/stories/products-1/miranda-introduces-the-lightest-dedicated-e-mtb-cranks-1
Complete e-bikes will come fully outfitted with a motor and battery specific to the bike frame, so there’s often little – or no – choice of battery. It’s important to be aware of the different battery types because they will impact your ride quality. There are lead-acid batteries, which are cheaper, but heavier, have a shorter life span, and take longer to charge, and there are lithium-ion (Li-ion) batteries, which are lighter and last longer, but are more expensive. A Li-ion battery can cost more than double what a lead-acid battery can cost.
Types of electric bikes
City/Commuter – Ideal for getting from points A to B and sturdy enough for hauling heavy loads, these versatile bikes feature either a hub or mid-drive motor. Frame designs include hybrid, step-through, road, cruiser, cargo, and mountain bike, and can accommodate wide tires for extra stability.
Road – Almost identical to a traditional road bike design, e-bikes for road conceal the motor and battery in the frame, which is a stealthy way to slip past unsuspecting automobiles trapped in traffic.
Mountain Bike – E-mtb’s also steal their design from mountain biking’s traditional human-powered origins. Hardtail, full-suspension, downhill, and even fat e-bikes have granted more people even greater access to the outdoors.
Gravel/Adventure – This evolving e-bike category electrifies the “go anywhere” attitude that its human-powered models have already embraced. Gravel/adventure bikes feature drop handlebars, gravel-specific components, disc brakes, and wide tires.
The popularity of e-bikes will only grow stronger in the future as more people take command of their movement and mobility in a more sustainable, healthier and more environmentally-friendly way. Miranda supports anyone who engages in this lifestyle by equipping them with the products to power their decision.
Shop Miranda’s e-bike products, mirandabikeparts.com/en/shop/e-bike/
Next up: What's the best crank for your e-bike (coming April 17, 2019)
When you ride an e-bike, how you ride has as much to do with where you ride to determine your ideal e-bike set up. Of course what type of e-bike you ride will also influence your choices but just because you can roll a complete bike out of the shop doesn’t mean that you’re stuck with the choices someone else made about components, like cranks. Different crank lengths yield different pedaling sensations and ride qualities. To get the most out of riding your e-bike, it’s helpful to know what’s the best crank length for your e-bike, here are some things to consider when choosing e-bike cranks.
What are the different crank lengths?
Crank lengths range from 150 mm – 175 mm with the most common lengths somewhere between 160 – 175 mm. There’s no shortage of anecdotal evidence in favor – or against – one crank length as opposed to another but the conversation should always begin with “Well, it depends…” because one size neither fits all nor fits every situation.
If your e-bike is a…
Mountain bike that you plan to ride exclusively off-road, you’ve less need for a long crank with which to leverage power (that’s what the motor is for). A slightly shorter crank, like 165 mm instead of 170 mm, will yield optimal pedal clearance so that you won’t get hung up on obstacles going either up or downhill. If you go too short however, the result will be a smaller standing platform, which might feel a little sketchy on descents. Significantly shorter cranks will also require more rotations to match pace with your buddy who’s riding with longer cranks.
But don’t just take our word, E-Mountainbike Magazine tested three different crank lengths under controlled circumstances. Read the report here.
Urban e-bike that you use for commuting or riding around town, you can probably go with your customary crank length without incident. Assuming that you’re not going to radically alter your riding habits now that you’ve got on-demand power, then there’s probably little reason for you to change your crank length.
You have a selection of e-bike cranks to choose from if you decide that a shorter or longer crank would be better. Follow this link to see Miranda's available e-bike cranks.
Cargo e-bike that’s outfitted to haul heavy loads, keep in mind that an e-bike motor is meant to assist you, which means you’ll need to do some of the work too. If you’re planning to carry big loads, it’d be a good idea to opt for a shorter crank for better power transfer between you and the pedals.
To optimize your load-carrying capacity, opt for lighter, carbon fiber cranks and transfer your weight savings into hauling bigger loads. Miranda's carbon fiber cranks are available in the online store (link).
If you’re able to select your cranks at the point-of-purchase, that’s great news because you can take your e-bike home with your ideal crank length already installed. If you’re thinking about swapping out your cranks or getting an extra pair for special circumstances, first check the warranty conditions for your e-bike. Some e-bike motor suppliers will void the warranty if anything happens to the motor resulting from a DIY project. Your best bet is to have an authorized dealer install the cranks for you and you’ll avoid the hassle of a voided warranty.
Once you know what you’re after, Miranda’s range of e-bike cranks, spiders, chainrings, and chainguards can be purchased a la carte through Miranda’s online store (link). If you don’t know what you’re after, here’s a little advice: get exactly what you want to make your e-bike comfortable, safe, and to guarantee an enjoyable ride!
Until someone makes the perfect e-bike chain, Miranda will do everything it can to protect the one you have and prevent it from wearing out too fast. Our cold-forged e-bike chainguard nut fits in between your drive-side crank arm and your chain where it wards off physical threats to your chain. Installing it is easy, here’s how:
1. Open the package – Inside you should find one chainguard nut and a rubber “O” ring
2. You’ll need these tools – Have on hand a torque wrench, a hex key socket, a Bosch Active/Performance spider tool, a compact crank wrench and puller, and a 15 mm wrench.
3. Using the torque wrench and hex key socket – Remove the drive-side crank bolt.
4. Using the compact crank wrench and puller – Insert puller into the drive-side crank bolt hole; then screw and tighten the compact crank wrench into the crank arm.
5. Using the 15 mm wrench — Turn the compact crank wrench in a clockwise direction to until crank arm can be easily removed.
6. Position the spider tool — To remove the Bosch nut, lock the spider tool in place and loosen the nut with the torque wrench.
7. Place the “O” ring — Install the rubber “O” ring where the Bosch nut was.
8. Attach the e-bike chainguard nut — Rotate the E chainguard nut counter clockwise until it is flush with the “O” ring and firmly attached.
9. Position the spider tool — Lock the spider tool in the notches in the face of the chainguard nut; tighten to 20-25Nm with the torque wrench.
10. Replace the crank arm and bolt — Using the torque wrench and hex key socket, tighten to the specified torque of 57-64Nm
We’ve made a video to demonstrate these steps, however before you do it yourself, check the warranty details for your e-bike motor! Some e-bike motor suppliers will void the warranty if anything happens to the motor resulting from a DIY project. Your best bet is to have an authorized dealer install the cranks for you and you’ll avoid the hassle of a voided warranty.
Watch it here:
You can fortify your e-bike against chain drops and flying rocks with this simple combination of ChainFlow® chainring and E-chainguard nut. ChainFlow’s patented tooth design holds your chain firmly in place while the E-chainguard nut protects it from physical threats and prevents it from wearing out too fast. Installing the cog and nut combo is easy, here’s how:
Watch the video for further demonstration of these steps, however before you do it yourself, check the warranty details for your e-bike motor! Some e-bike motor suppliers will void the warranty if anything happens to the motor resulting from a DIY project. Your best bet is to have an authorized dealer install the cranks for you and you’ll avoid the hassle of a voided warranty.
If you’re reading this, you’ve likely discovered that mid-drive e-bike crank bolts can fail. Sometimes they fail because they were installed incorrectly: too much torque was applied, or the adhesive smeared on the bolt threads during initial installation was too strong, causing the bolt to break upon removal. Or sometimes they fail because the bolt threads may be damaged or just simply wear out. Whatever the circumstances are, you suddenly need to replace your crank bolts but then you have to ask yourself, “How do I choose the right crank bolts for my e-bike cranks?”
The first practical reaction would be to consult the motor manufacturer. This seems reasonable but most motor manufacturers partner with crank manufacturers (like Miranda) to produce cranks specifically designed to be compatible with their respective motors. These custom cranks are built to maintain the bike’s chainline with precision; the cranks are most often attached to the motor via one of the standard crank interfaces: ISIS, JIS, BNI, or Shimano’s interface. This essentially means that cranks spec’d for e-bike models will have bolts determined by the crank interface.
Miranda M15 self-extracting crank bolts
This brings you back to the original question of how to choose the right crank bolts for your e-bike cranks but now it gets easier. If your old crank bolt is still in one piece, go find yourself a ruler or a tape measure with millimeter measurements. You’ll want to measure the diameter of the bolt’s thread length, that’s to say measure the diameter of the threaded part of the bolt. If you have a caliper measuring tool, even better since that’ll eliminate any margin of error. The resulting number will yield the diameter you’ll need to look for in a replacement bolt.
Caliper Measurement Tool
If however, your crank bolts got lost or broken, you’ll need to do a little bit of sleeve-rolled sleuthing and find out what model cranks you have. To find out who manufactured the cranks, look on the interior side of the cranks where you may be able to find the manufacturer’s logo. From there it’s recommended to either consult the manufacturer’s website or to contact the manufacturer directly to find out what crank bolts you’ll need
For Miranda cranks, send us an email at email@example.com
One more bit of information you might need before you go searching for replacement crank bolts is the thread pitch. Nearly all e-bike crank bolts have metric threading (as opposed to Unified Thread Standard), which is indicated by the letter “M” preceding the bolt diameter. For example, Miranda’s e-bike crank bolts all feature metric threading.
We get that anything which keeps you off your bike should be easy and painless to resolve. Send us an email if this article sparks more questions because someone else might have the same question, which would help us improve our service to you.