Posted on August 4, 2022 by Tyler Benedict
Need to update your older bike with a newer groupset? Good luck finding a modern road or gravel group with post-mount brakes anymore, so if your frame or fork has the original drop bar disc brake standard, Wolf Tooth Components has you covered.
It also works for anyone trying to convert their mountain bike frame into a monster-cross or drop-bar touring bike by allowing current drop bar brake levers and caliper to be fitted.
The new Post to Flat Mount adapter lets you run flat mount disc brake calipers on your post mount frame and fork. It’s $29.95 per wheel (includes all bolt hardware) and comes in black, and is recommended for SRAM and Shimano brakes (we’ve asked about Campy).
There are two caveats. First, you’ll need a minimum of 13mm clearance between the fork/frame and the brake caliper.
The second is that it adds 20mm to the rotor size, so if we’re running a 160mm rotor, you’ll now need to use a 180mm. The exception being if your frame was already using an adapter to upsize the rotor, then you should be able to stick with anything you’ve got…as long as it wasn’t 140mm.
Tyler Benedict is the Founder of Bikerumor.com. He has been writing about the latest bikes, components, and cycling technology for 14 years. Prior to that, Tyler launched and built multiple sports nutrition brands and consumer goods companies, mostly as an excuse to travel to killer riding locations throughout North America.
Based in North Carolina, Tyler loves finding new travel adventures to share with his family and is always on the lookout for the next shiny new part to make his bikes faster and lighter. And, he’s totally gone down the NFT rabbit hole.
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Prefer to run 180 up front anyway, so this adapter is a go for me.
A.S. Solutions isn’t the only game in town anymore, but they have a +0 adapter, not just a +20.
Agreed. A.S. Solutions definitely had first mover advantage with these (I’ve seen them for sale in 2020 at the earliest), but they just don’t enjoy the same widespread availability or reach Wolf Tooth has.
I like this a lot.
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