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Reviewed in the United States on January 28, 2025
Solid upgrade for my Poseidon X Ambition. You need a 180mm rotor for the front wheel, which is fine because that increases braking force even more. I paired them with Jagwire cables and the bike brakes (nearly) as well as my wife’s Trek that has full hydraulic brakes.
Jacob Hanson
Reviewed in the United States on September 3, 2024
Work great on my 2019 Trek Checkpoint AL3. Drop in replacement for the stock tektro calipers. They've held up for a year and a half of amateur cyclocross, commuting, road rides, and mild single-track. They certainly feel better than purely mechanical brakes, but probably aren't halfway to full hydraulic brakes.
Roy Peterson
Reviewed in the United States on July 2, 2024
Bought these to replace the mechanical disk brake calipers on my Specialized road bike. They are of very good quality but the braking performance showed little improvement. Tried some different pads and bedding them in but decided to return them. Subsequently changed out to full hydraulic disk brakes with new shifters and calipers.
JOHN Q. PUBLIC
Reviewed in the United States on February 28, 2024
Like many reviews for this product, I have learned that my bike needs 180 mm rotors. Otherwise, the brake pads will only grab the very outer edge of the 160 mm rotors. This causes uneven wear on the brake pads and unreliable braking.The solution is to install 180 mm rotors on the front wheel. Might as well install 180 mm rotors in the rear, too.Other than the rotor issues, I would have given this a five star rating.*UPDATE: Ordered 180mm rotors from Amazon. Installed on the front wheel. Worked well. However, the 180mm rotor was too large in the rear. In other words, these brakes accommodate 180mm rotors in the front and 160mm rear for a 2021 Poseidon X gravel bike.Lastly, DO NOT UNBOLT THE SIDES HOLDING THE BRAKE HOUSING TOGETHER! Some mineral oil leaked out, and now the brakes have lost some stopping power. Looks like a little port is available to refill with mineral oil, but could not find instructions anywhere.
Benjamin J. Brandimar
Reviewed in the United States on February 2, 2024
Nice box160 mm rotors w bolts ...bolted right on my wheels ...no problemsthe brakes look and the piston works great both cylinder work greatStandard is a funny word IS or PMCan not use the fork brake that came in the box because they do not fit of my fork which is 74mm oc!Can not use the rear brake that came in the box because they will not work without an adapter!
Howard S.
Reviewed in the United States on August 14, 2023
Replaced promax on cannondale topstone. Didn't need 180mm rotors, too big for my config. Very easy to adjust, installed the new 160 rotors that come with the kit. Look great and very smooth, great stopping power even before fully bed in. Highly recommend
Lyle Kimms
Reviewed in the United States on July 10, 2023
Like other reviewers have indicated, the front caliper is for 180mm or larger rotor. Rear fits 160mm rotor just fine. Although the caliper appears to be well made (hence 4 stars), the fact that the caliper is advertised as fitting 160mm rotor likely spells "rebrand." And it's a major blunder for the manufacturer/seller to not know that the front rotor needs to be 180mm or larger.
Mike M
Reviewed in the United States on March 17, 2023
Super easy install although on my 2022 top stone 4 I had to use a 180mm caliper in the front because I couldn’t get it to mount with the stock 160 I do believe this is a cannondale issue, not a Juin issue, so I’m not detracting points for this. Braking is umpteen times better than stock single-sided calipers. Adjustment is easy and the build quality is solid!
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