- Simple and reliable square taper bottom bracket
- Replaces both BB-UN26 and BB-UN55
- Sealed cartridge bearings
- Cr-Mo axle
- For bicycles equipped with a chain case, select BB-UN300-K
- For E-type front derailleur compatibility, choose BB-UN300-E
Broadly speaking, hydraulic disc brakes designed for bicycles will use either a mineral oil fluid, or an automotive DOT fluid. Genuine Shimano Mineral Oil is the only fluid compatible with Shimano brakes.
Built to perform under the most demanding conditions, the BO-2 is the perfect complement to any tool collection. World-famous Park Tool Blue vinyl-dipped handle and stainless steel construction provide years of comfortable use
A great way to start a tool collection! The perfect combination of tools to help the novice home mechanic clean, adjust, maintain, and do some basic repairs on their bike.
These replacement chain tool pins are compatible with most Park Tool chain tools and are made from hardened alloy tool steel. Installs with a 7 mm or 9/32" box end wrench.
