BB резьба износостойкие керамические подшипники Замена дорожный велосипед пресс подходит велосипедная ось аксессуары Нижний кронштейн Портативный

Description:
Suitable for 5-way width of 68-73mm.
Smooth ceramic ball bearing axis, greatly improving abrasion resistance and not easy to rust.
Aluminum alloy material, the metal strength is higher, while keeping the aluminum alloy material light, high strength and light weight.
With CNC machining, the fine lines of the teeth are strong and stable during the fastening process, which enhances the overall finish and is colorful.
Its lubricity makes it easier for you to compete in bicycle racing, more effortless.
Specifications:
Product name: Bicycle Bottom Bracket
Color: Black, Red
Material: Aluminum alloy+ Ceramic bearings+Nylon
Thread: BC 1.37 inch
BB shell width compatibility: 68mm,73mm
Inner diameter: About 24mm
Package Included:
1Pc x Bicycle Bottom Bracket
1Pc x Reducing sleeve
Note:
Transition: 1cm=10mm=0.39inch
1. Due to the light and screen difference, the item's color may be slightly different from the pictures.
2. Please allow 0.5-2 cm differences due to manual measurement.