All Jones H-Bars use a 31

Pros: Top quality pump with a record to prove it

it is recommended to wipe the surface of the chain with a clean rag prior to riding

Internal Width: 19

Materials: 100% Cotton

Park CNW-2 Chainring Nut Wrench PDP|Colour All Jones H-Bars use aThe CNW 2 makes chainring bolt set installation and removal easy. It securely holds the slotted nut to prevent spinning when tightening or loosening the bolt. Double ended to fit most slotted type nuts. The outer width of both ends of the CNW 2 are nominally 12mm wide. One end has a two outer tips nominally 2. 7mm wide each, and the other end has tips of 3. 8mm each. The blade thickness is nominally 1. 35mm.