Park Tool DSD-4 Derailleur Flat Screwdriver 172.5mm } 230% higher air flow

} 230% higher air flow than traditional presta valves thanks to the straight through bore deisgn Precision CNC machined from 7075 aircraft grade aluminium Stainless steel ball valve with seals and O-rings 4-way tyre insert air flow base is compatible with most tubeless inserts 4mm machined hex key slot for easy installation / removal Available in 25

size 29" front/rear rear (XDR) rim Podium SRD disc carbon hub M-Pulse IS disc axle/spacing (mm) 12x148 Boost hole 28h spoke DB nipple alloy color black weight 709g

Designed to compliment trick variations by being grippable and pinchable but slim and easy to move around

the Stick Drive’s minimalist design is optimized for versatility and ease of use

3 quickly folds down for storage and transport with a smooth-operating leg support system that pulls both legs up in one simple motion

Park Tool DSD-4 Derailleur Flat Screwdriver 172.5mm } 230% higher air flowShop quality screwdrivers designed for comfort and durability. The ergonomic dual density handle offers an excellent comfortable grip while meeting precise JIS standards Features CNC heat treated chrome vanadium tips and shafts for durability keyword search JIS