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

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

Micro angular contact sealed bearings

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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