Park Tool PMP-4.2B - Mini Pump Tool, Blue Alpenchallenge Optimized chain for HG sprocket

Optimized chain for HG sprocket which provides a fast and precise rear shifting performance (especially during downshifts)

Supernatural Handling

and ride quality previously thought impossible

Drivetrain Speeds: 8

Shifter Shimano Tourney Revo 7-speed twist with optical gear display Rear derailleur Shimano Tourney TY300 *Crank Size: 24" wheel

Park Tool PMP-4.2B - Mini Pump Tool, Blue Alpenchallenge Optimized chain for HG sprocketSmall but powerful mini pump, mounts easily to side of bottle cage. Compatible with both Presta and Schrader valves Maximum 90 psi pressure 10. 5" long Water bottle boss mounting bracket included 130 grams