Our Alloy Short Cranks are a John Cobb engineered product designed to improve speed and comfort on the bike for all athletes. These hot forged alloy cranks have a GXP style axle (22/24mm) that are easy to install and work well with all road frame bottom bracket standards. They are available in compact, mid-compact and standard options and come in 4 different crank arm lengths 145mm, 155 mm, 160 mm or 165 mm.
Trek BB90 frames require the use of a BB Infinite BB90 bottom bracket with Cobb Cranks. Any use of another bottom bracket in a Trek BB90 frame with Cobb Cranks will void the warranty. Link to bottom bracket below:
What is our Exclusive 30/60 Comfort Exchange Program?
We at JCOB by Speed & Comfort, are delighted to offer our demanding customers a higher level of professional service. As such, we offer our 30/60 Comfort Exchange Program to all seats purchased via our online-store.
You may return the seat for a full refund within 30 days from the seat's original delivery date if the seat is returned to us without any signs of wear and tear. Even if the seat has signs of normal wear and tear due to the extended test rides, you may still exchange the seat for a "No Questions Asked" program in which you have 60 days from the original seat's delivery date to find your ultimate comfort. (For the dealer purchased seats, the responsible dealer policy applies)