Mountain Bike Bottom Bracket BB386 Aluminium Alloy Black Frame to Crankset 24mm Press in Bicycle Accessory
- Simple designed, easy to install and operate, convenient to use.
- Bottom with thread special designed, ensures cups tightened and screwed together within frame to avoid quacking.
- By matching top-quality component and special technology, ensuring each underframe gives every rider opportunity to save energy or increase riding speed.
- Each of our underframe manufactured for optimal performance and maximum durability.
- Made of high quality aluminium alloy material, sturdy, durable and long service life.
