steel

self-serivce package, for Bosch Gen.1, 2 and 4, ISIS, suitable for Shimano Octalink

self-service package, steel, black, suitable for Bosch drive Gen.2, suitable for all chains

self-service package, for Bosch Gen.3, BNI

3-speed, square, 170mm crank length, black
6-/7-/8-speed compatible, with chain guard ring

CrMo, black
11/128", 47,5mm or 50mm chainline, adjustable with spacer, Direct Mount, for Bosch Gen.3

M15, pair, for ISIS and Howitzer

for Bosch engines Generation 3 (Active Line Plus), 1/2 x 3/32" and 1/2 x 11/128"
steel, black, cathodic tauch dip coating, material thickness: 2,0mm, direct mount, with one spacer, allows two chainlines
47,5: spacer is mounted between chain ring and lock ring
50,5: apacer is mounted between engine and chain ring

4-arm, for 9-speed, 104 / 64mm circle diameter
self-service package

4-arm, 104mm circle diameter, steel
self-service package, without shifting ramps