BB109 инструмент Нижний Кронштейн резьба керамический подшипник алюминиевый сплав дорожный велосипед Коррозионностойкие шатуны запасные аксессуары

Description:
Made of durable aluminum alloy material, with sealed bearings
Easy to hold and convenient to use.
Ceramic ball bearing lighter weight than stell ball, andhave corrosion resistance so it have longer use life.
Replace the old kits ,suitable for mountain bike and road bike.
Best one for your bike,which let you enjoy your cycling competitions.
Specification:
Type: Bottom Brackets
Model: BB109
Color: Black, Red
Inner diameter: about 24mm
Material: Aluminum alloy+PP +Ceramic Ball Bearing
Frame length: 68-73mm
Package included:
1 x Bottom Brackets
Note:
1. Due to the light and screen difference, the item's color may be slightly different from the pictures.
2. Please allow 1-3cm differences due to manual measurement.