Profile Racing Spider-Spline Drive 104 BCD Single C/R

SPIDER-SPLINE DRIVE (SINGLE CHAINRING)

-Designed to provide optimal chainline when using a Profile Euro Outboard bottom bracket.

-Places the single chainring over the external bearing cup.

-Machined from billet aluminum plate.

-Supplied with a CrMo Steel adapter insert already pressed in.

Three styles of single chainring spider available:
-4 Bolt (104MM BCD) for 19mm splined axle
-4 Bolt (104MM BCD) for 22mm splined axle
-5 Bolt (110MM BCD) for 19mm splined axle