DT Swiss Ratchet Conversion Kit for SRAM XDR hub, Black, Size 1 size, 54-tooth, Unisex road cycling upgrade

DT Swiss 54-tooth rotor conversion kit upgrades SRAM XDR hubs to a higher-precision ratchet freehub for faster engagement, lighter weight, and tool-free maintenance.

This conversion kit from DT Swiss replaces the standard toothed discs in compatible SRAM XDR freehub bodies with a 54-tooth ratchet system designed to increase engagement points, reduce rotational slack, and shave grams through precision milling. It's intended for riders who want crisper power transfer, quicker pedal engagement in technical terrain, and the ability to service or swap the ratchet discs without specialized tools.

How does the 54-tooth ratchet improve pedaling responsiveness?

The higher tooth count increases the number of engagement positions between pawls and ratchets, producing a shorter angular distance before engagement. That means the drivetrain reacts more quickly when you resume pedaling after a coast, which is especially useful when accelerating out of turns or on punchy climbs. The direct metal-to-metal engagement also minimizes drivetrain play compared with older spline systems.

• 54 teeth deliver three times more locking points than many standard toothed discs.
• Reduced freeplay leads to faster power transfer at the first pedal stroke.
• Precision-machined teeth ensure consistent, predictable engagement.

Can I install this on my SRAM XDR 142x12 mm hub without tools?

Yes — the DT Swiss Ratchet System is designed for tool-free removal and replacement of the freehub body and its toothed discs. That makes swaps, cleaning, or upgrades quick and convenient at home or in the workshop, and it reduces downtime during rides when you need to service the hub urgently. Basic mechanical skill is helpful, but no proprietary tool is required for the disc exchange.

• Tool-free disassembly of the freehub body for fast maintenance.
• Clear installation sequence suitable for home mechanics.
• Compatible with SRAM XDR freehub bodies and 142 x 12 mm spacing.

Will this conversion affect weight or durability?

DT Swiss milled the 54-tooth discs to remove excess material, resulting in an approximate 10 gram savings per pair compared to standard discs. The machining reduces mass while maintaining the structural integrity needed for hard starts and sustained loads. The ratchet mechanism’s robust steel contact surfaces are engineered for durability under high torque and repeated engagement cycles.

• Approximately 10 g lighter per pair versus older toothed discs.
• Milled construction balances weight reduction with strength.
• Durable steel engagement surfaces designed for long service life.

Will this kit change my hub’s compatibility or require new components?

The kit is built specifically for SRAM XDR freehub bodies and 142 x 12 mm axle spacing; ensure your wheel uses XDR and matches this axle standard. It converts DT Swiss hubs to the ratchet freewheel engagement, but it does not change cassette fitment beyond standard XDR compatibility. Check axle and spacing specifications before purchase to confirm a correct match.

• Designed for SRAM XDR freehub bodies (XDR11/12 compatibility).
• Intended for 142 x 12 mm hub spacing; verify your wheel’s spec.
• No change to cassette type when fitting to a compatible XDR body.

Who is this for? This DT Swiss rotor conversion is aimed at performance-minded cyclists, gravel and road riders tackling technical sections, and home mechanics who prioritize quick engagement, lower rotational slack, and simple maintenance. If you ride aggressively out of corners, sprint frequently, or want a lighter, more responsive hub without buying a new wheelset, this kit is a practical upgrade.