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Carbon Speed brand new 24mm titanium spindle carbon fiber crankset
Crank

Carbon Speed brand new 24mm titanium spindle carbon fiber crankset

Weight343g
Year2025
CategoryCrank

The XM Carbon Speed 24mm titanium spindle carbon crankset is a lightweight aftermarket option (around 320–343g for arms, $310–$340) that offers Shimano compatibility and significant weight savings over alloy cranks. However, buyers should be aware of chainring compatibility issues with Shimano 12-speed quick links and potential installation quirks.

Pros

  • Lightweight: saves about 220g compared to Shimano 105 alloy cranks12
  • Titanium spindle is lighter and stronger than alloy1
  • 24mm spindle offers Shimano compatibility and larger bearings for BB86 frames12
  • Clean, logo-free aesthetic3
  • Includes pre-applied thread lock and spacers1
  • Designed in-house, not a generic rebranded product1
  • Compatible with Easton-style power meters (XCadey, Sigeyi)2
  • Available with carbon spider and narrow-wide chainrings for 1x setups32

Cons

  • Chainring incompatibility with Shimano 12-speed quick links (and ZTTO), causing chain sticking; aftermarket chainrings like Alugear may be required32
  • No 3-bolt or 8-bolt interface options, limiting power meter compatibility2
  • Installation challenges: BB compression when over-torquing, unclear torque settings, spacer issues2
  • Higher price compared to some AliExpress alternatives2
  • Plastic preload ring on some versions may be a durability concern2
  • Limited crank arm length options (no 172.5mm or 150mm)1

Key Facts

  • Weight: crank arms 320–343g; complete setup with power meter and chainrings 647.3g132
  • Price: $310–$340 USD for the 24mm titanium spindle version132
  • Spindle: 24mm titanium, compatible with Shimano drivetrains132
  • Available crank lengths: 155mm, 165mm, 170mm12
  • Interface: Easton-style, compatible with XCadey and Sigeyi power meters2
  • Q-factor: 149/151mm2
  • Chainring options: double (50-34T, 52-36T) and single narrow/wide2

Reviews & Ratings

Patrick Lino
06:41
XM Carbon Speed Carbon Cranks - Titanium 24mm Shimano Spindle!

The reviewer presents a new product from XM Carbon Speed, a set of carbon cranks featuring a 24mm titanium spindle designed for Shimano drivetrains. They highlight its key features, including the titanium spindle for added strength and weight savings, the use of a Shimano-compatible standard instead of the more common SRAM DUB, and its in-house design. The reviewer provides the weight (343g), compares it favorably to a Shimano 105 alloy crank (565g), and details its price ($340 USD), available lengths (170mm, 165mm, 155mm), and included accessories like spacers and pre-applied thread lock.

August 29, 2025Watch on YouTube
XMCS (XiaMen Carbon Speed) Wheels

The Carbon Speed brand new 24mm titanium spindle carbon fiber crankset is a lightweight aftermarket crankset offered by XM Carbon Speed (Peter). It features a 24mm titanium spindle, carbon arms, and is available with a carbon spider and optional chainrings. Users report weights around 320g for the crank arms, with a complete setup including power meter and chainrings weighing about 647g, which is lighter than the Cybrei equivalent. The crankset is priced at $310 for the 24mm titanium spindle version. A known compatibility issue exists with Shimano 12-speed quick links and the XMCS narrow-wide chainrings, but aftermarket chainrings like Alugear work fine. The product is generally praised for its light weight and clean, logo-free appearance.

AI Summary

Pros

  • Lighter than the Cybrei crankset setup (647.3g vs 688g with power meter).
  • Cranks have no logos, which is aesthetically preferred by some buyers.
  • Available with a carbon spider and narrow-wide chainrings for 1x setups.

Cons

  • The XMCS narrow-wide 1x chainrings are incompatible with Shimano 12-speed quick links (and ZTTO 12-speed quick links), causing chain sticking.
  • The chainring incompatibility may require switching to aftermarket chainrings (e.g., Alugear) to work with Shimano 12-speed quick links.

Key Points

  • Price: $310 USD per set for the 24mm titanium spindle version.
  • Weight: Crank arms 320g, preload ring and spacers 13g, power meter 111.8g, chainrings 195.8g, chainring bolts 6.7g; total with PM 647.3g.
  • Material: Carbon fiber arms with titanium spindle (24mm diameter).

more key points in the review

Xiamen Carbon Speed 2025 new carbon crankset

The Carbon Speed 24mm titanium spindle carbon fiber crankset is a lightweight crankset available in DUB 29mm aluminum spindle and 24mm titanium spindle versions. It features carbon fiber crank arms with an Easton-style interface, compatible with Easton-compatible power meters (like XCadey and Sigeyi) and chainrings. Available crank lengths include 155mm, 165mm, and 170mm, with weights around 320-330g for the 24mm titanium version and 325g for the DUB aluminum version. Prices are $230 for the DUB version and $310 for the 24mm titanium version. The product includes optional carbon chainrings (double and single) and a carbon spider, though some users report issues with chainring quality and compatibility.

AI Summary

Pros

  • Lightweight design, with the 24mm titanium spindle version weighing around 320-330g and the DUB aluminum version around 325g, offering significant weight savings compared to alternatives like Shimano Ultegra.
  • Available in multiple crank lengths (155mm, 165mm, 170mm) and spindle options (24mm titanium and 29mm DUB aluminum), catering to different frame standards and rider preferences.
  • Compatible with Easton-style interfaces, allowing use with popular power meters like XCadey and Sigeyi, and offering flexibility for chainring setups.

more pros in the review

Cons

  • Chainring quality issues, including wobble, misalignment, and incompatibility with Shimano 12-speed quick links, leading to poor shifting and setup difficulties.
  • No 3-bolt or 8-bolt interface options, limiting compatibility with some power meters and chainring setups.
  • Installation challenges reported, such as BB compression when over-torquing, unclear torque settings, and spacer issues, requiring careful setup.

more cons in the review

Key Points

  • Weight: ~320-330g for 24mm titanium version, ~325g for DUB aluminum version
  • Price: $230 for DUB version, $310 for 24mm titanium version
  • Crank lengths: 155mm, 165mm, 170mm

more key points in the review

Codes from reviewers
Patrick Linoxmcarbonspeed.ccPatty30
Purchase

Where to Buy

$340.00· 2 stores
View Deals

Variants

Variants
Same for all
Sold As
Complete crankset (with chainrings)
Power Meter
Optional (power spider available)
ConfigurationSpindle StandardWeight
24mm titaniumShimano 24mm (Hollowtech II)—
DUB 29mm aluminumSRAM DUB / 29mm (28.99mm)—

Specifications

Attributes

Weight343g
Sold AsComplete crankset (with chainrings)
Crank Arm MaterialCarbon
Spindle StandardSRAM DUB / 29mm (28.99mm)
Bolt Circle DiameterProprietary
Crank Lengths165, 170, 160, 155 mm
Power MeterOptional (power spider available)
Chainrings2x
Chainring Sizes52/36, 54/38
Spindle MaterialAluminium
Chainline—
Q-Factor—
Speed Compatibility—

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