Specialized training wheels black 20" Cassette Cogs-12-13-14-15-16-17-19-21-23-26-29 6mm Front Derailleur only compatible

6mm Front Derailleur only compatible with Sora R3000 2x left shifter

Includes: 50T2 Brake shoes with V-type 18mm washers 10mm washer 14mm washer 16

ERD and weights shown include PHR washers

4 Tire Type Tubeless Ready Clincher PSI 20-40

8mm) or Thick (31

Specialized training wheels black 20" Cassette Cogs-12-13-14-15-16-17-19-21-23-26-29 6mm Front Derailleur only compatibleThis is a three position training wheel system, with tool less installation and removal, so youre always the hero without so much as a screwdriver. Reinforcing this, the tubular steel arms are built to take a beating, while the foam tires will never go flat. Closed cell foam tires. Compatible with 2013 and newer models of the Hotrock or Riprock 20 inch Coaster models. Tubular steel arms.