Peaty's Holeshot Fast Flow Tubeless Valves - Punch Size:42mm Anti-slip coating on GRX brake

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

increased stiffness and now also an aid when using tubeless tyres: no tape is required

providing a comfortable and efficient pedaling stance

Epic offroad bike tours require you to bring all the essential tools and gear to keep from being stranded in the middle of nowhere

Peaty's Holeshot Fast Flow Tubeless Valves - Punch Size:42mm Anti-slip coating on GRX brakeHoleshot 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