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๐ดโโ๏ธ Upgrade your stopping power with precision and style!
The BUCKLOS MTB PM Front/Rear 203mm Disc Brake Caliper Mount Adapter is a precision-engineered, CNC-machined aluminum alloy adapter designed to fit post mount disc brakes from 160mm to 203mm. Featuring a polished finish and including mounting bolts, it ensures secure, corrosion-resistant, and heat-tolerant performance for serious mountain bikers seeking reliable braking upgrades.









| Asin | B08D9KPL7M |
| Best Sellers Rank | #6,864 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #1 in Bike Brake Mounts & Adapters |
| Brand Name | BUCKLOS |
| Color | Black |
| Customer Reviews | 4.3 4.3 out of 5 stars (369) 4.3 out of 5 stars |
| Finish Types | Polished |
| Included Components | IS PM Mounts |
| Item Dimensions | 4.33 x 5.12 x 0.79 inches |
| Item Weight | 1.6 ounces |
| Manufacturer | BUCKLOS |
| Manufacturer Part Number | 554555 |
| Manufacturer Warranty Description | 30 days |
| Material Type | Aluminum |
| Model Number | Black |
| Unit Count | 1 Count |
| Upc | 192236738502 |
User
looks great and very easy to intall. price is great and shipping was quick.
i have ordered a few of these for my bikes and clients. the fit and finish is great. price was also great. love how easy it is to install. got it installation down to under 2 minutes. will be ordering more in the future. shipping was quick and packaged very well. no damage and quality is wonderful. the work great on the bike and look great.
User
Great value, works well
This adapter worked perfectly on my Ibis Ripmo v1. It bolted right on and positioned the caliper for my new 203 mm rotor which was larger than the 180 mm rotor that my bike came with. To be clear I ordered the "PM Front/Rear 203mm" version. There is no documentation so it took a minute to figure out the correct orientation on the bike. I am including a photo of my mount in case it helps others.Overall I found the Bucklos adapted to be a great value, especially compared to the higher cost part from Shimano.I learned a couple of things through the process of identifying the correct part. Originally I ordered the wrong Shimano adapter. This was primarily due to Shimano's poor documentation on their website but also due to a different seller listing a partial part number. Ibis support was great and they confirmed that the part number I needed was SM-MA-F203P/P. The important thing to know is the original rotor size that your frame is designed to use directly mounted without an adapter (sometimes referred to as "native" size). While my bike originally came with a 180 mm rotor, it also had an adapter. Turns out the "native" direct mount size was 160 mm. So this Bucklos adapter was exactly what I needed to run 203 mm on a 160 mm frame.
User
Great product, well made and super color!
Unfortunately I had to return it since it did not work on my fork. I wish it did, I loved the look and feel of it.
User
Worked fine until I put it on a fox 36
Just bought a new fox 36 factory fork on my bike yesterday. Used this adapter to mount my 4 pot SLX caliper to the fork because I have 203mm shimano rotors. This mount had the caliper sitting too high off the rotor, so when I applied the brake, the uneven pressure of only half of the brake pad on the rotor caused one of my pistons to crack and fluid started leaking everywhere. They should have a warning on this listing about this. There is another review talking about his problems with this adapter on the same fork. Destroyed 90$ calipers because of that.
User
A perfect fit, just what I needed!
I upgraded my DYI Mongoose Hitch Bafang BBSHD ebike with a shock absorbing front fork and needed an adapter to mount my 203 mm disk brake caliper. This one looked good so I ordered it, I was surprised to get one day delivery, it arrived the next day. It was well-made and easy to install. Pretty spiffy that different colors are available, I was able to pick one that closely matched the color of my frame. Four shim washers were included. I thought they would be needed, but it turned out it fit perfectly without them, the pads are nicely centered over the disk. Very happy with the purchase!?
User
Easy to install
Fits the ebike perfectly made it easy to upgrade rotor to 203mm.
User
Spacer for 160mm to 180/203mm rotor
This is to upgrade from a 160mm to a 180mm or 203mm. If your bike came stock with a 160, and you want to upgrade to a 180 or 203 get this. If your bike came stock with a 180mm, and you are trying to upgrade to a 203mm, this will NOT work. Ended up returning it because I'm needing to upgrade from a 180 to a 203.In my pictures you can see the pads dont grab the full disc with the spacer. If I set the caliper where it would grab the full disc, the spacer is too big.quality seemed fine.ordered a Shimano SMMA90F203PPM instead to upgrade from a 180 to a 203
User
Inexpensive solution
Needed wanted to upgrade to a larger brake rotor ABs required this adapter. Figment was perfect and it does its intended work
Trustpilot
2 months ago
3 days ago