Peaty's MK2 Tubeless Valves Presta 42mm & 60mm - Chris King Colors

In this review the Peaty's X Chris King MK2 Tubeless Valves are judged primarily on practicality and finishing; they're aimed at riders who use tubeless setups across mountain, gravel and road bikes and want a durable, serviceable valve with a splash of color. The single biggest reason to buy is the integrated dual-tool cap that combines a valve core remover and a spoke key, which saves time during sealant top-ups or trailside spoke adjustments while matching Chris King quality and color options.

Key Features

• Integrated tool cap: The combined valve core remover and spoke key cap makes adding sealant and tightening standard 3.4mm nipples quick without carrying extra tools.
• X-cut base: Channels in the valve base let air and sealant pass through when using inserts, ensuring compatibility with tyre inserts and reliable inflation.
• Easy fitting: Large soft rubber bases and integrated O-rings create an airtight seal and protect rims from lock ring scratches during installation.
• Premium material: Machined from 7075 aluminium for a high strength-to-weight ratio that suits carbon, enduro and DH rims as well as road and gravel setups.
• Two lengths: Available in 42mm and 60mm to accommodate a wide range of rim depths without guesswork.
• Colors & guarantee: Chris King colour options plus Peaty's valves for life guarantee provide long-term style and support.

Who It's For

The MK2 Presta valves are ideal for cyclists who run tubeless tyres and value integrated functionality: mountain bikers using inserts, gravel riders who carry sealant, and road cyclists fitting deeper rims will all benefit from the tool cap and insert-compatible X-cut base. Riders who care about finish and matching accent colours will appreciate the Chris King collaboration and durable 7075 aluminium construction.

Those who should look elsewhere include riders who never carry sealant or tools and prefer the absolute cheapest valve option, or riders requiring an uncommon spoke nipple size beyond the standard 3.4mm compatibility noted here. For workshop-only users who already own a full toolset the integrated cap is useful but not essential.

Pros & Cons

Pros

• Integrated spoke key and valve core remover reduces what you need to carry and speeds roadside repairs.
• Well-sealed fit with soft rubber base and O-rings protects rims and holds sealant reliably.
• High-quality 7075 aluminium construction is light, strong and finished to a premium standard.
• X-cut base works with tyre inserts, ensuring airflow and sealant passage when inserts press against the valve.

Cons

• Integrated spoke key is sized for standard 3.4mm nipples, so it may not fit non-standard spoke nipple sizes.

Specifications

Brand	Peaty's (Chris King colours)
Material	7075 aluminium
Valve type	Presta tubeless
Lengths	42mm and 60mm
Included tools	Integrated valve core remover cap and spoke key cap (for 3.4mm nipples)
Insert compatibility	X-cut base allows air and sealant passage with tyre inserts

Our Verdict

The Peaty's X Chris King MK2 Tubeless Valves are a smart upgrade for riders who want functionality and finish in one part: integrated tool caps, insert compatibility and robust 7075 aluminium construction make them good value for anyone running tubeless systems. They are especially worthwhile if you value quick trail repairs and a premium look without adding much weight.

Frequently Asked Questions

Do these valves work with tyre inserts?
Yes, the X-cut base is designed so air and sealant can pass through when inserts press against the valve, making them insert compatible.

What tool functions are built into the cap?
The cap combines a valve core remover and a spoke key sized for standard 3.4mm spoke nipples, covering sealant top-ups and common spoke adjustments.

Are these suitable for carbon rims?
Yes, they are made from 7075 aluminium and include soft rubber bases and O-rings to prevent lock ring scratching, making them suitable for carbon rims.