Peaty's Holeshot Fast Flow Tubeless Valves - Punch Size:42mm MIPS (Multi-Directional Impact Protection System)

MIPS (Multi-Directional Impact Protection System)

Anti-slip coating on GRX brake levers means that even in wet or muddy conditions that you'll always have Shimano's legendary stopping power on demand

and (2) aluminum pulley bolts

(110mm travel W/Maxle Stealth)

providing a comfortable and efficient pedaling stance

Peaty's Holeshot Fast Flow Tubeless Valves - Punch Size:42mm MIPS (Multi-Directional Impact Protection System)Holeshot Fast Flow Valves deliver approximately 200% greater airflow than our Mk2 Presta valve, while maintaining an air tight, fail safe design that reduces the risk of damage during use. Key Product Features 200% more FLOW than a MK2 Presta Valve No sealant clog Fully tyre insert compatible Fully serviceable with no throw away parts Internal and external anodising to reduce clog Air tight fail safe valve mechanism located inside the rim Micro