Cotton Reels for Kawasaki Z900 '17, Kawasaki ZH2 '20- and Triumph Bonneville Bobber '17- models (CR0057) Are they cotton reels or spindle sliders Well they are both really!! The Cotton Reel protects the swingarm and swingarm core components in the event of a crash or drop, but also double up as paddock stand bobbins. Allowing the motorcycles rear wheel to be lifted into the air via a paddock stand to performance chain adjustment, tyre changes and cleaning! This particular pair of R&G Cotton Reels are compatible with the Kawasaki Z900 '17and Triumph Bonneville Bobber '17- models This Product brought to you by THS Moto Fits: Triumph BONNEVILLE BOBBER BLACK 2018-2019