Peaty's X Chris King MK2 Tubeless Valves Presta - Integrated Tool Caps

Our review of the Peaty's X Chris King MK2 Tubeless Valves finds them aimed squarely at riders who want tidy, durable tubeless setups with built-in service tools. The single biggest reason to buy is the convenience: the integrated valve core remover and spoke key cap save time in the workshop and on the trail, while premium 7075 aluminum construction and soft rubber bases deliver a reliable seal and long service life. These valves work across MTB, road and gravel use and are insert compatible, so they suit riders who run inserts or frequently top up sealant.

Key Features

• Integrated tool cap: The valve cap doubles as a valve core remover and a spoke key for standard 3.4mm nipples, which simplifies roadside and workshop adjustments.
• X-cut base: Channels in the valve base allow air and sealant to pass when tyre inserts are used, maintaining compatibility with inserts like CushCore.
• Insert compatibility: Designed to work with tyre inserts, the valve base keeps sealant flowing and avoids blockage when inserts press against the valve.
• 7075 aluminum body: Lightweight high-strength construction resists corrosion and keeps valve weight down without sacrificing durability.
• Soft rubber base and o-rings: Large soft rubber bases and integrated o-rings make it easy to form an airtight seal and protect rims from scratches.
• Two lengths: Available in 42mm and 60mm to cover common rim depths across road, gravel and MTB setups.

Who It's For

These valves suit cyclists who run tubeless tyres across mountain bike, gravel and road disciplines and who value integrated serviceability. Riders who fit inserts or use heavy sealant will appreciate the X-cut base and insert compatibility, and workshop-oriented riders benefit from the built-in spoke key and core remover.

Less suitable are riders who need non-Presta valve types or those who prefer the absolute lowest possible component cost over convenience and finish. Also, if you need unusual spoke nipple sizes or captive proprietary tools, check compatibility before buying.

Pros & Cons

Pros

• Built-in valve core remover and spoke key make maintenance and sealant top-ups quick and simple.
• X-cut base and channels maintain airflow and sealant flow when using tyre inserts.
• Premium 7075 aluminum construction and soft bases give a durable, reliable seal and refined look.
• Available lengths cover most rim depths from road to enduro applications.

Cons

• Some buyers report colour variations versus images, so actual cap finish may differ from expectations.
• Integrated spoke key fits standard 3.4mm nipples only, limiting use with nonstandard nipples.

Specifications

Brand	Peaty's (Chris King collaboration)
Material	7075 aluminum
Valve type	Presta tubeless
Lengths	42mm and 60mm options
Included tools	Integrated valve core remover cap and spoke key cap (3.4mm)
Base design	X-cut base with channels for insert compatibility
Seal features	Large soft rubber base and integrated o-rings

Our Verdict

Peaty's X Chris King MK2 valves are a practical upgrade for riders who want durable, serviceable tubeless valves that work with inserts and keep sealant flowing. They balance refined materials and helpful integrated tools, making them good value for cyclists who accept small colour variances and use standard spoke nipples.

Frequently Asked Questions

Are these valves compatible with tyre inserts?
Yes. The X-cut base and channels are designed to work with inserts so air and sealant can pass when an insert is pushed against the valve.

What tools come with the valve caps?
The caps include an integrated valve core remover and a spoke key sized for standard 3.4mm spoke nipples.

What sizes are available?
They come in two lengths, 42mm and 60mm, to suit common rim depths across road, gravel and MTB setups.