Profile GDH Chromoly 48T-Spline


Brand: Profile



The Profile Gun Drilled Hollow (GDH) 19mm Crank axles are a great way to take a large chunk of weight off of your bike without sacrificing a great deal of durability.

- Uses GDH Crank Tool. Older crank tools will not work.

- Includes 6mm GDH CrMo crank bolts and aluminum flush washers.

- The GDH CrMo axle has the same Limited Lifetime Warranty as our Race Cranks.

Sizes: 5.25″, 5.625″, 6.00″, 6.875″, 8.00″

A. 5.25″ (For Track Bikes)
Weight: 188g / 6.6oz

B. 5.625″ (For BMX Freestyle Bikes)
Weight: 203g / 7.15oz

C. 6″ (For 68mm & 73mm external Euro BB’s, Press fit BB’s)
Weight: 217g / 7.65oz

D. 6.875″ (For 83mm Euro BB’s)
Weight: 255g / 8.95oz

E. 8.0″ (For MTB 100mm Bottom Brackets and Fat Tire Bikes)
Weight: 326g / 11.45oz

GDH Bolt Comparison Weights:

CrMo GDH Bolt set:
Weight: 40g / 1.4oz

7075 Aluminum GDH Bolt set:
Weight: 17g / .55oz

Titanium GDH Bolt set:
Weight: 25g / .85oz


Note: Not all kits come laser etched.