Full Speed Ahead Orbit Z 1.5R ZS Reducing Headset 1.5" to 1-1/8" Black Product Type_Computer Accessories }Shimano TL-FC37 Bottom Bracket tool

}Shimano TL-FC37 Bottom Bracket tool for Ultegra SM-BBR60

Brake Caliper Type Post Mount Weight 20 Mount | Rotor Size Rear IS | 160 Rotor

Cassette Body Type Single Cog Driver Hub/Brake Compatibility Rim Brake ISO Diameter 406 / 20" BMX Rear Axle 14mm Threaded x 110mm Tire Type Clincher Wheel Size 20" Defined Color Black Valve Schrader

Works with all 10-11 speed Shimano and SRAM Road Derailleurs

Full Speed Ahead Orbit Z 1.5R ZS Reducing Headset 1.5" to 1-1/8" Black Product Type_Computer Accessories }Shimano TL-FC37 Bottom Bracket toolFull Speed Ahead Orbit Z 1. 5R ZS Reducing Headset 1. 5" to 1 1 8" Black. The FSA Orbit Z headets feature a very low profile design primarily for ATB and are compatible with Cane Creek internal style headsets."Zero Stack" Cane Creek compatible Very low profile designed primarily for Mountain Bikes Patented alignment tip for increased durability and performance TH brand 36 degree Micro Angular Contact Bearings (red seal) 7075 alloy crown race Laser