The Shimano BB-RS501 bottom bracket features a special seal design which noticeably extends the service life. The bearing cups with BSA thread are perfectly matched to the interaction with Hollowtech II cranksets..
FEATURES
- Designed for a perfect fit with Hollowtech II 24mm crank spindles
- Anodized aluminum cups are high-strength and light weight
- Spindle Interface Type: Shimano Hollowtech II
- Series: Tiagra
- BB Shell Width: 68mm English
- BB/Frame Interface: English
- Weight: 92g.
- Color: Silver

SQUIRT Chain Lube 15ML (0.5OZ)
ENDURO BKC-0021 - 1/4 (0.25) Grade 5 Si3N4 Ceramic Balls (50 pieces)
DMT FK1 Shoes (44)
Topeak Alien S, 31 Function Tool, With Bag
TEKTRO DISC ROTOR TR-180-35 CENTER LOCK
DMT FK1 Shoes (42)
GIYO GM-71 HIGH PRESSURE MICRO FLOOR PUMP
ENDURO 71902 LLB - ABEC-5 Angular-Contact Bearing (C3 Clearance) - 15mm x 28mm x 7mm
ENDURO BKCJ-0340 - 11 tooth, XD-15 Ceramic Hybrid Bearing, Machined Delrin Derailleur Pulleys for 11 speed Shimano Dura Ace (9000 Series) and Ultegra (8000 Series) Derailleurs (5mm bolt hole) - Red
KRUTIALS TUBE 29*1.75*2.35 FV48
CO2 NOZZLE 009









