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