The Profile Spline Drive Spider mounts directly to the splines on the Profile BB spindle, and thus eliminates the need for a bolt on the crank arm. Aluminum Spider with a Heat-Treated CrMo insert for strength. This Spline Drive Spider will give the best chain line when paired with Profile's Internal Bearing Bottom Bracket.

• Available in all of our colour options.
• Available in 144 and 130 bolt patterns
• Works best with Internal Bearing BB and 5.25" BB spindle

CHAINRING BOLTS NOT SOLD BY PROFILE