Description

A crank set designed for a single chain-ring with a 104 mm BCD. Bolt Circle Diameter (BCD) is the diameter of the circle that goes through the center of all of the bolts on your chain-ring. This crank set is compatible with standard bicycle chain-rings. When selecting a chain-ring, ensure it features a 4 x 104 mm bolt pattern (the chain-ring is not included).

The cranks are crafted from high-strength Cr-Mo steel with a tensile strength of 1200 N/mm². They are available in two lengths: 120 mm and 170 mm.

The cranks utilise interlocking teeth for connection, secured by an M10 fine-thread bolt. The fine threading prevents loosening and eliminates the need for a thread lock. To secure, tighten the bolt to 35 Nm.

This system fits only frames with 100 mm BB shell width!

Product features

• BCD: 4 x 104 mm
• Chain ring suggestions: 46 teeth maximum size for use with Q80/Q155/Q76/Q140 frame kits with 100 mm BB shells
• Bottom bracket: This system fits only 100 mm BB shell width
• Chain line: adjustable with repositioning of spacers
• Crank arm length: 120 or 170 mm
• Material of crank arms: Cr-Mo steel
• Color: black powder coat
• Weight (includes BB bearing, cranks and all nuts and bolts): 945g (120 mm), 1075g (170 mm)

Additional information