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Wolf Tooth ComponentsRoadlink DM


Item # WFC0010

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  • Shimano R8000/R9100, 11-36/11/42t ($29.95)
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Item # WFC0010

Roadlink DM

If you're going to run a significantly larger 11-speed cassette with your Shimano DuraAce or Ultegra rear derailleur, it's best to upgrade the stock direct mount for the Wolf Tooth Roadlink DM. This way, you'll maintain stock levels of chain wrap and crisp shifting without anything feeling wonky when it's time for the chain to move up and down the cassette with the quick flick of the shift lever. Wolf Tooth optimized the Roadlink DM for wide range 11-speed cassettes, so you can expand your gear range and push your cycling horizons further than you ever thought possible while conserving energy on those excruciating climbs.
  • Allows you to run an 11-speed cassette without shifting issues
  • Designed for road bike use only (there's a GoatLink for mtb use)
  • Optimized for use with 11 - 36t, 11 - 40t, 11 - 42t cassettes
  • Designed for Shimano Dura-Ace and Ultegra rear derailleurs
  • Maintains stock levels of chain wrap and crisp shifting

Tech Specs
CompatibilityShimano R9100-gen Dura-Ace, R8000-gen Ultegra rear derailleurs, 11-36t, 11-40t, 11-42t cassettes
Recommended Useroad cycling

Actual Weight

Shimano R8000/R9100, 11-36/11/42t

Claimed Weight

Claimed weights are provided by the vendor.

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Actual weights are measured in-house by the Competitive Cyclist team.

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What do you think about this product?


>Rating: 5

Works with GRX RD-RX815 Di2 too.

I've used it several times

I’m running a mullet setup on my gravel bike with a Shimano GRX RD-RX815 Di2 Rear Derailleur and an 11-42 cassette. I’ve got several rides under my belt using a Roadlink DM. I don’t have to screw the B-screw all the way in and the shifting is crisp and smooth as one expects with Di2. The firmware for Di2 doesn’t recognize an 11-42 cassette for a GRX 815 rear derailleur but I set the the Di2 for 11-34 and everything so far is working fine.

>Rating: 5

Works with 46 tooth cog

I've used it once or twice and have initial impressions

I just installed this on a bike with a 42-tooth single front chainring, an SLX 11 speed 11-46 cassette and an Ultegra RX800 rear derailleur. 42 and 46 are not supported by Wolf Tooth but it works. It's not factory perfect but it gets me a low gear and reliable shifting.