Chris King R45 Gen 4 Conversion Kit
Best premium upgrade for dedicated cyclists seeking long term hub reliability.
This kit is the ultimate insurance policy for your wheelset, letting you adapt to new drivetrain standards without replacing your entire hub. It’s a straightforward, high-precision upgrade that saves you from obsolescence, though you will need to commit to the specific maintenance rituals that come with these legendary bearings.
$250.00
at
Chrisking
Who it's for
- Cyclists upgrading their frames while keeping high-end wheelsets
- Performance-driven riders who value precision-engineered components and long-term durability
- Eco-conscious enthusiasts looking to maximize the lifespan of their gear
Who should skip it
- Budget-focused cyclists seeking the most economical repair solutions
- Home mechanics without access to professional-grade cycling tools
- Owners of older hub models requiring different legacy parts
Performance breakdown
Installation Simplicity
Plug-and-play design makes drivetrain swaps accessible for most home mechanics.
Drivetrain Compatibility
Seamlessly bridges the gap between legacy hubs and modern cassette standards.
Bearing Precision
Legendary Chris King tolerances ensure smooth, long-lasting rotational performance.
Build Quality
Premium materials and robust construction justify the investment for serious riders.
Maintenance Ease
Standard tool requirements simplify routine servicing and future component adjustments.
Upgrade Versatility
Flexible bearing and freehub options cater to specific rider performance needs.
Key Specs
Compatibility
R45 hubs (serial numbers starting with 631)
Axle Type
Quick Release
Axle Diameter
9 mm
Axle Length
130 mm
Over Locknut Dimension
130 mm
Freehub Body Type
SRAM XDR
Bearing Options
Stainless Steel, Ceramic
Finish Options
Silver, Black
Included Components
Pre-assembled axle, driveshell, adjusting clamp, QR axle ends
Installation Tools Required
2.5mm hex key, T10 Torx tool
Know before you buy
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Ask Metto anything about the Chris King R45 Gen 4 Conversion Kit before you decide.
