Cranksets

Subcategories

• 

  Rotor Vegast

  Vegast crankset with 12s chainrings for Shimano

  Vegast Crankset – Versatility, Durability, and Modular Performance

  The Rotor Vegast crankset is a versatile, robust, and affordable model designed to meet the needs of all cyclists, whether beginners or experienced riders. Made from forged aluminum, it guarantees excellent durability with minimal weight, making it ideal for road rides, long distances, as well as gravel or time trials (TT). The Vegast is also an excellent introduction to Rotor's modular range, allowing you to configure cranksets tailored to various uses and disciplines.

  Uses of the Vegast Crankset

  The Rotor Vegast crankset allows you to build different types of cranksets, modular according to your specific needs and discipline. With compatibility for both 24 mm and 30 mm axles, you can customize your crankset for gravel, road, track, or TT use.

  • Classic Chainrings: The 50/34, 52/36, 53/39, and 54/39 configurations are among the most popular, offering an excellent balance between performance and versatility for road cyclists. These chainring combinations are perfect for riders looking for a high-performance crankset suitable for various situations.
  • Aero Versions: For speed and aerodynamic performance enthusiasts, Vegast offers specific configurations with 54/42, 55/42, 56/44, and 58/44 chainrings. These versions provide enhanced aerodynamics, ideal for flat terrain racing and TT or triathlon competitions.
  • Micro-Compact: The Vegast also supports the 46/30 and 48/32 configurations, which are perfect for mountainous routes and long climbs.
  • Single Chainring: The Vegast crankset is compatible with single chainring setups for both road and TT, simplifying the drivetrain and offering optimal cadence.
  • Track and Gravel: With the option for an offset axle, available in both 24 mm and 30 mm, the Vegast is also perfectly suited for gravel configurations. On the track, its rigidity allows for efficient power transfer and excellent responsiveness.

  Limitations Compared to Aldhu

  The Rotor Vegast stands out for its versatility and affordability, but it does have a slight limitation compared to the Aldhu crankset in terms of available crank arm lengths. Unlike the Aldhu, specific lengths (150 mm, 155 mm, 160 mm, and 167.5 mm) are not available on the Vegast. The Vegast focuses on standard crank arm lengths: 165 mm, 170 mm, 172.5 mm, and 175 mm, which cover the needs of most cyclists.

  Which Bottom Bracket to Pair with a Vegast Crankset?

  For pairing with the Vegast crankset, it is often recommended to use a Rotor steel bottom bracket, which offers an excellent quality-to-price ratio and enhanced durability. For those seeking superior performance, a ceramic bottom bracket paired with a 30 mm axle is an ideal option, providing weight savings and improved drivetrain smoothness.

  Key Features of the Vegast Crankset

  • Forged aluminum for maximum strength.
  • Available crank arm lengths: 165 mm, 170 mm, 172.5 mm, and 175 mm.
  • Compatibility with 24 mm and 30 mm axles, with the option for offset axles for gravel setups.
  • Classic chainring configurations: 50/34, 52/36, 53/39, and 54/39, perfect for versatile road use.
  • Aero configurations: 54/42, 55/42, 56/44, and 58/44 for improved aerodynamics in TT or triathlon.
  • Micro-compact versions (46/30 and 48/32) for mountainous routes.
  • Compatible with single chainring setups for road and TT.

  The Rotor Vegast crankset is a versatile and affordable solution for cyclists looking to enjoy the modularity and performance of the Rotor range while maintaining a competitive price. It adapts to a wide variety of uses, whether on the road, in gravel, or for aero disciplines.

• 

  Rotor Aldhu

  Rotor Aldhu crankset with 12s Shimano chainrings

  Aldhu Crankset – Precision and Adaptability

  The Rotor Aldhu crankset is the ideal solution for cyclists seeking precision and versatility. Designed with CNC-machined aluminum, it offers exceptional lightness and finish, providing a significant weight reduction compared to the Vegast model. Its unique design allows it to adapt to multiple configurations, whether you're a fan of road racing, triathlon, gravel, or track.

  Available in various crank arm lengths, the Aldhu crankset adjusts to your body and pedaling style. Choose from the following crank arm lengths: 150, 155, 160, 165, 167.5, 170, 172.5, and 175 mm for 30 mm axles, or 155, 165, 170, 172.5, and 175 mm for 24 mm axles.

  Why Choose the Aldhu Crankset?

  • CNC-machined aluminum for unmatched manufacturing precision and elegant design.
  • 30 grams lighter than the Vegast model, improving performance with every pedal stroke.
  • Suitable for intensive road use and optimized for the most demanding competitions, whether in time trials or triathlons.

  Discover Our Aldhu Cranksets in Video

  In this category, we offer complete and exclusive cranksets that we have carefully tested and photographed. On our YouTube channel, find dedicated videos offering a 360° view of the Aldhu cranksets. This allows you to explore each model from every angle before purchasing, to choose the version that perfectly combines performance and aesthetics.

  24 mm or 30 mm Axles: Which to Choose?

  The choice of axle is crucial for getting the most out of your Aldhu crankset:

  • 24 mm axle: Simplifies maintenance and offers easier installation. Perfect for cyclists seeking reliability and compatibility with a wide range of frames.
  • 30 mm axle: Prioritize performance with an average weight saving of 75 grams compared to the 24 mm version. Ideal for demanding cyclists who want to gain in lightness and rigidity, especially in competition.

  A Wide Range of Configurations for Every Need

  The Aldhu cranksets are available in various configurations to match your riding style:

  • Double chainring: Choose from classic configurations ranging from 50/34 to 54/39, ideal for road cyclists seeking smooth pedaling in all conditions.
  • Single chainring: Perfect for gravel or cyclocross, simplifying the drivetrain while maintaining an optimal cadence.
  • Micro-compact versions: With options 46/30 and 48/32, these cranksets are perfect for tackling mountainous terrain and long climbs.
  • Aero versions: For speed enthusiasts, options from 54/42 to 58/44 offer improved aerodynamics and stiffness for flat terrain competitions.

  An Aldhu Crankset for Every Discipline

  Thanks to the versatility of the 24 mm and 30 mm axles, the Aldhu crankset can be converted into a gravel crankset at any time by swapping the axle for an offset axle. This modularity allows you to transform your crankset according to your needs and riding style.

  The Rotor Aldhu crankset covers a wide range of disciplines:

  • Gravel: Enjoy the flexibility of the single chainring and compatibility with rough terrain.
  • Track & single speed : Choose the rigidity and precision of the Aldhu aluminum models.
  • Road: Lightness and performance for races and long-distance rides.
  • Time Trial (TT) and Triathlon: Maximize your output and minimize energy loss with an optimized aero setup.

  https://youtu.be/i4ti0T9Cb6I

  Aldhu is a modular crankset. Watch our Youtube channel and have a quick view on each part that is making a Aldhu crankset !

• 

  Aldhu Carbon

  ROTOR ALDHU CARBON

  A carbon crankset with almost unlimited potential

  Road, climbing, racing, power meter, 1x, gravel, triathlon or time trial: the Aldhu Carbon platform lets you build a very light setup without locking yourself into one chainring combination.

  From 456 g in 1x* ≈ 640 g with INspider 2.0* 38 to 58-tooth options 155 to 175 mm crank arms Round NOQ or oval Q-Rings

  Carbon crank arms, a 30 mm aluminium axle and Rotor's modular architecture allow the crankset to evolve with your fitness, terrain or bike. Prioritise low weight, climbing, power data or very large chainrings while keeping the same component family.

  Discover Aldhu Carbon INspider 2.0 Choose my configuration

  *Indicative or verified weights depending on crank length, axle, chainrings and hardware.

  Why choose Aldhu Carbon?

  A premium, lightweight and genuinely upgradeable platform

  Aldhu Carbon is not just about saving a few grams. Its real strength is the combination of low weight, stiffness, gearing choice and the option to add a spider-based power meter.

  1 Ultra-light carbon crank arms Approximately 250 to 260 g per pair depending on length, delivering a major saving over aluminium arms. 2 Rotor modularity Crank arms, axle, spider, power meter and chainrings can be selected or replaced separately. 3 Small and large gearing From a mountain-friendly 48/31 to a 58/44 TT setup, plus 38 to 54T single-ring options. 4 Round or oval Choose round NOQ chainrings or oval Q-Rings to match your pedalling style and riding goals. Priority configurations

  Which Rotor Aldhu Carbon should you choose?

  Every version retains the same core qualities, but each one serves a different priority. This is the selection order we recommend.

  Most versatile

  1. Aldhu Carbon Spider Mount 12s

  The best option when you want precise control over your gearing and the freedom to change it later. It covers classic road, racing, high-speed and selected SRAM AXS configurations.

  • Shimano: 50/34, 52/36, 53/39, 54/39 and 54/42.
  • SRAM AXS with suitable rings: 48/35 or 50/37.
  • Round NOQ or oval Q-Rings.
  • Verified weight around 542 g in a 50/34 Q-Rings configuration.

  Configure the Spider Mount 12s

  Lightest 2x option

  2. Aldhu Carbon Direct Mount 12s

  The natural choice for minimising the weight of a modern road bike. The one-piece CNC-machined Spidering combines low mass, stiffness and accurate front shifting.

  • 48/31 for high mountains and long climbs.
  • 50/34 for endurance and all-round riding.
  • 52/36 for fast sportive riding.
  • Verified weight: 538 g in 170 mm with 48/31 Q-Rings.

  View Direct Mount 48/31 to 52/36

  Our power meter pick

  Aldhu Carbon INspider 2.0: light, clean and dependable

  The Aldhu Carbon INspider 2.0 is one of the most coherent configurations in Rotor's entire range. It pairs the carbon crank arms with a power meter integrated into the spider, protected from impacts and perfectly centred in the drivetrain.

  For most riders, it is easier to own than a system spread across several components: long rechargeable battery life, direct head-unit connectivity, stable spider-based measurement and a wide choice of chainrings.

  ≈ 640 gcomplete crankset depending on setup ± 1.5%claimed power accuracy 350 hclaimed battery life IP67water and dust protection ANT+ / BluetoothGarmin, Wahoo, apps and indoor training 155–175 mmmultiple crank lengths

  • Total power, cadence and estimated left/right balance.
  • Garmin Cycling Dynamics support on compatible devices.
  • Rechargeable battery and straightforward calibration.
  • Round or Q-Rings chainrings and many gearing options depending on the build.
  • An excellent balance for daily training, racing and long sportives.

  Important: INspider measures total power at the spider. It does not measure each leg independently like 2INpower, but it provides an estimated balance. For most riders, this architecture delivers highly useful data with less complexity and a particularly low total weight. Configure Aldhu Carbon INspider 2.0 Compare 2026 power meters Record-low 1x weight

  4. Aldhu Carbon 1x Universal Tooth

  A clean, light and quiet drivetrain for 1x road or fast gravel. The Universal Tooth profile provides secure chain retention without a guide in most applications.

  • 38 to 54-tooth chainrings.
  • Round or 12% Q-Rings depending on size.
  • Standard road axle or Offset gravel axle.
  • Verified weights: 456 g with a round 42T and 491 g with a round 50T.

  View the 38 to 54T 1x crankset

  Large chainrings

  5. Aldhu Carbon Aero 12s

  For time trials, triathlon and riders able to exploit very large chainrings. This version prioritises stiffness, chainline and aerodynamic integration.

  • 54/42, 55/42, 56/44 and 58/44.
  • Compatible with Shimano 11 and 12-speed drivetrains.
  • Integrated spider and hidden hardware for a clean outer face.
  • INspider and aero accessory solutions can also be considered for bespoke projects.

  View the 54 to 58T versions

  Real, comparable weights

  How much does an Aldhu Carbon crankset weigh?

  Weight changes significantly with chainring size, crank length, axle and hardware. The figures below still provide a useful comparison between the main builds.

  Configuration	Indicative / verified weight	Priority	Recommended use
  Aldhu Carbon crank arms only	≈ 250–260 g	Weight reduction	Upgrade an existing modular Rotor crankset
  1x Universal Tooth, round 42T	456 g verified	Lowest weight	1x road, fast gravel
  1x Universal Tooth, round 50T	491 g verified	Speed + simplicity	Fast 1x road riding
  Direct Mount 48/31 Q-Rings, 170 mm	538 g verified	Climbing	Mountain passes, long sportives, high cadence
  Spider Mount 50/34 Q-Rings	≈ 542 g verified*	Versatility	Road, climbing and future gearing changes
  Spider Mount 52/36	≈ 576 g verified*	Sportive	Fast road riding, rolling terrain and group rides
  Complete Aldhu Carbon INspider 2.0	≈ 640 g*	Data + performance	Training, racing and pacing
  Aldhu Carbon Aero, 54 to 58T	Varies by build	Aerodynamics	TT, triathlon and high-speed riding

  *Exact weight varies with crank length, chainring shape and size, axle and hardware. Check each product page for the measured configuration.

  Gearing

  Small or large chainrings: unlock the crankset's potential

  The best crankset is not the one with the largest outer ring. It is the one that lets you stay close to your efficient cadence on the roads you actually ride.

  48/31 — climbing priority The largest safety margin for long or steep climbs. Pair it with a suitable cassette to preserve cadence late in a ride. 50/34 — all-round endurance A reassuring choice for mountains, long-distance riding and cyclists who never want to run out of easy gearing. 52/36 — sportive road An excellent compromise for fast flat riding, group rides and genuine climbing ability with an 11-34 or 11-36 cassette. 53/39 to 54/42 — power and speed For trained riders who often ride fast and want a firmer, more direct drivetrain suited to larger gears. 55/42 to 58/44 — TT and triathlon Specialist gearing designed to maintain an efficient chainline at very high speed. It requires power, an aerodynamic position and suitable terrain. 38 to 54T in 1x From versatile gravel to fast road. The correct choice depends mainly on cassette range, elevation and target cadence. Compare 50/34 and 52/36 Use the 12-speed gear calculator Round or Q-Rings

  Should you choose round or oval chainrings?

  Round NOQ: familiar feel, simple setup, predictable behaviour and often the lowest weight. Oval Q-Rings: may smooth the dead spot and improve pedalling consistency for some riders. Road and climbing: oval rings are often appreciated during steady efforts, long climbs and triathlon. Sprinting and repeated accelerations: round rings often feel more natural to highly explosive riders.

  There is no universal answer. The advantage of the Aldhu Carbon platform is precisely that you can choose, test and later evolve the build without replacing the entire crankset.

  Read our complete oval chainring guide

  Shared specifications

  The Aldhu Carbon platform at a glance

  Crank arms: high-performance carbon construction designed for low weight and stiffness. Axle: 30 mm aluminium, with Standard road or Offset options for selected gravel builds. Lengths: 155, 165, 170, 172.5 and 175 mm depending on availability and configuration. Chainrings: 2x or 1x, round NOQ or oval Q-Rings. Drivetrains: Shimano and SRAM depending on the selected version and chainrings. Disciplines: road, climbing, gravel, sportives, triathlon, TT and track with the correct components. Every Aldhu Carbon uses a 30 mm axle, so a compatible bottom bracket is required. It is not the focus of this page: simply send us your frame brand, model and year, and we will identify the correct part. Frequently asked questions

  Key answers before you buy

  Which Aldhu Carbon version is best for most riders? Spider Mount 12s is the most versatile because it offers the broadest gearing choice. Direct Mount is better when minimum weight is your absolute priority. INspider 2.0 becomes the strongest overall choice as soon as you want an integrated power meter. Is Aldhu Carbon INspider 2.0 dependable for everyday riding? Yes. The electronics are integrated and protected within the spider, with IP67 certification, a rechargeable battery rated for up to 350 hours and ANT+ / Bluetooth connectivity. Regular zero-offset calibration and correct installation are still recommended, as with any power meter. Does INspider 2.0 truly measure each leg separately? No. It measures total power at the spider and calculates an estimated left/right balance. Choose Rotor 2INpower for truly independent measurement of each leg. For training, pacing and fitness tracking, INspider already delivers a highly complete data set. Can I change chainrings later without replacing the crank arms? Yes. This is one of Rotor's main modular advantages. On Spider Mount and INspider builds, you can replace the chainrings while keeping the arms, axle and spider, provided the new rings match your drivetrain. What is the difference between Direct Mount and Spider Mount? Direct Mount uses a one-piece machined chainring assembly, which is generally lighter and very stiff but offered in fewer combinations. Spider Mount uses separate chainrings and therefore provides much greater freedom to change gearing. What is the smallest 2x gearing available? The 48/31 Direct Mount is the flagship climbing option in this category. It provides noticeably more margin than a 50/34 while keeping an outer ring large enough for versatile road use. How large can the chainrings be? The range reaches 58/44 in the 2x aero version and 54T in the Universal Tooth 1x version. Exact compatibility depends on crankset version, front derailleur, chain and frame clearance. Is the Aldhu Carbon 1x suitable for road use? Yes. With a 46 to 54T chainring and a suitable cassette, it creates a light, quiet and direct road setup. The 38 to 46T sizes are more oriented towards gravel or very hilly routes. Is Aldhu Carbon compatible with Shimano 12-speed? Yes. Several versions are supplied with chainrings specifically compatible with Shimano 12-speed. SRAM compatibility depends on the build: dedicated AXS rings on selected versions, or SRAM 11-speed compatibility on Direct Mount. Do I have to choose short crank arms? No. Lengths from 155 to 175 mm allow the crankset to match your body dimensions, position and cadence. A 165 mm crank is only one option; the right length depends on saddle height, mobility, discipline and riding habits. Which bottom bracket do I need? A bottom bracket compatible with a 30 mm axle. Solutions exist for the main frame standards. To avoid mistakes, send us the bike brand, model and year and we will identify the correct bottom bracket and any required spacers. Velo-Perso guides

  Refine your choice before ordering

  A crankset this modular should be selected from your terrain, cassette, cadence and goals rather than from a specification sheet alone.

  Compare Shimano and Rotor crankset weights 2026 power meter comparison 50/34 or 52/36? Choose your outer chainring size 12-speed gear calculator Oval Q-Rings guide Choose INspider 2.0 View all Aldhu Carbon cranksets
• 

  Rotor Kapic (MTB)

  Kapic is the MTB line of Rotor cranksets. There are several versions with aluminum and carbon arms. All Kapic can be made with 4 axle lengths which makes this crankset compatible with all MTB frames. Kapic are all designed for single chainring mount and they are directmount (spidering) or spider mount when they come with INspider powermeter.