Being a Park tool

Conversion scale on tool body

Magnet Lock system

USB rechargeable lithium-polymer battery

Truvativ Single Speed Chainring Bolts PDP|Colour Being a Park toolChainring bolts for single front chainring without a bash guard. If you're converting your double or triple chainring cranks to single speed, you'll most likely require new bolts. The Truvativ Single Speed Bolt Kit is exactly what you need. These steel bolts include shims and are for use with 4 arm cranks. Steel construction For use with 4 arm cranksets Includes: 4 x Bolts 7mm threaded length 4 x Nuts 9mm length 4 x 2mm Shims Truvativ Part Number 11.