-€10.00
Rotor NS24 Aluminum Crank Arms - 170, 172,5-175mm - 420g
Reduced price:
€79.00
Tax included
Pair of crank arms made from 6082 T6 CNC-machined aluminum, perfect for an affordable setup or winter use. Compatible with all spindles, spiders, and chainrings from the Aldhu-Vegast range. Verified weight: 420g in 170mm length.
Arm length
Key Features
- Material: 6082 T6 CNC-machined aluminum.
- Weight: 420g (170mm, verified).
- Available lengths: Compatible with all standard Rotor lengths.
- Compatibility:
- Fits Rotor 24mm spindles only (standard or offset).
- Compatible with Shimano 24mm bottom brackets.
- Interchangeable with Vegast 24 and Aldhu 24 crank arms.
- Recommended uses:
- Ideal for a budget-friendly winter crankset setup.
Velo-Perso.com’s Review
The NS24 crank arms are an excellent entry point into the Rotor ecosystem thanks to their attractive price-performance ratio. This model offers the reliability you expect from Rotor, with great versatility. We especially recommend them for:
- Testing specific crank lengths.
- Building a winter crankset at a lower cost while maintaining Rotor performance.
Component Information
- Compatible spindles: Rotor 24mm only.
- Compatible spiders and chainrings: All Aldhu-Vegast models.
- Limited stock: First come, first served!
FAQ — Rotor NS24 Crank Arms
What are NS24 crank arms compatible with?
NS24 crank arms are designed to be used exclusively with
Rotor 24 mm spindles from the modular Rotor range (Aldhu / Vegast),
available in standard or offset (gravel) versions.
• Standard 24 mm spindle:
view Rotor 24 mm spindle
• 24 mm offset spindle (gravel): view Rotor 24 mm offset spindle
• 24 mm offset spindle (gravel): view Rotor 24 mm offset spindle
Can NS24 replace a Shimano crankset?
Yes. In most cases, you can keep your existing 24 mm bottom bracket
(Shimano standard).
To convert to NS24, you will also need:
- a Rotor 24 mm spindle (standard or offset),
- a Rotor modular chainring system (spider + chainrings, depending on your setup).
What is the main advantage of NS24 crank arms?
With crank arms priced at under €80, NS24 offers several key benefits:
- build a Rotor modular crankset at a lower cost,
- test a different crank length without a major investment,
- perfect for a second bike or for young riders still growing.
Are NS24 crank arms stiff enough?
Yes. In real-world road and gravel use, NS24 can easily replace
crank arms such as Shimano Ultegra.
If maximum sprint stiffness is your top priority, a Rotor Aldhu 30 mm
setup remains the flagship choice in the Rotor range.
Can I use a power meter with NS24 crank arms?
Yes. NS24 crank arms are fully compatible with a modular Rotor setup,
including the Rotor INspider power meter (spider-based).
Typical setup: NS24 crank arms + Rotor 24 mm spindle + compatible spider and chainrings.
Are NS24 crank arms compatible with all frames?
Yes. NS24 is suitable for road and gravel frames.
Compatibility depends mainly on choosing the correct bottom bracket standard
for your frame and the appropriate Rotor 24 mm spindle.
Velo-Perso tip: if you hesitate between two crank lengths, NS24 is one of the easiest
and most cost-effective ways to test in real riding conditions.
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