Material: Made of aluminum alloy material, durable, which can be used for a long time.
Adjuster Size: The inner diameter is about 28.99mm/1.14inch.
Purpose: Spare Part for adjusting the axial bearing clearance of DUB cranks.
Preload for DUB Crank.
Not Easy to Fade: It adopts anodizing treatment, which is not easy to fade.