THORN MTB

THORN BMX CRANKS Kup on-line

WEIGHT

745-763g

SPLINES

SPINDLE

22mm

ARMS LENGTH

170mm

Description

2-pcs design cranks made of heat-treated Cr–Mo 4130 steel with 22mm spindle and 48 splines. RHD/LHD compatible. Two sprocket holes to fit all sprocket sizes. Small gusset to make the pedal assembly area stronger. Includes arms, spindle (welded to the right arm), 2 spindle bolts (AL 7075–T6 and Cr–Mo), 2 sprocket bolts (the bigger one is hollow), and assembly/disassembly tool.

160mm long spindle length is designed to work with Euro external bearings (like Dartmoor Euro eX BB 22mm) with 68mm or 73mm BB shells to create an extra-strong and efficient combination with frames like Two6Player or Shine.

Specification

WEIGHT

745g(with alu spindle bolt), 763g(with Cr–Mo spindle bolt)

COLOR

Matt Black

SPLINES

SPINDLE

22mm hollow

SPINDLE LENGHT

160mm

SPINDLE BOLT

5/8”x24T(8mm Allen key)

ARMS LENGTH

170mm

Downloads

MAXIMUM TIGHTENING TORQUES

COMPLETE BIKES GEOMETRY 2026

FULL-SUSPENSION FRAMES GEOMETRY 2026

HARDTAIL FRAMES GEOMETRY 2026

HOW TO CHOOSE THE PERFECT BIKE / FRAME SIZE

FAQ

Can I pre-order a bike/bike?

If you're interested in purchasing our products, we recommend contacting one of our distributors from this list: Dartmoor Distribution. If your country isn’t listed, feel free to email us at sales@dartmoor-bikes.com - we’re happy to help!

Can I run a fork with a different amount of travel?

Yes! Each frame has a recommended fork travel range, which you can find in the Geometry Chart under “Recommended Fork Travel.”

How to assemble Dartmoor bikes?

Our bikes are shipped 95% assembled in a single box. You'll just need to install the handlebar, seat post, and front wheel.

Do you offer bearing kits?

Yes! We provide bearing kits for all full-suspension frames in our lineup. These are available through your local dealer.

Can I run wider tires?

Each frame's maximum tire size is listed in the specification chart. Please refer to it for guidance.

Where can I find the torque specs?

A complete user manual, including all torque specs, is available for each frame. You can find it at the bottom of the product page in the Downloads section.

What size do I need?

Check our Size Guide If you're still unsure, the best way to find the perfect fit is to test the bike yourself!