LEWIS PM-PM+20 and PM-PM+40 Mountain Bike Post Mount Disc Brake Adapters
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Free Shipping: On all orders
CNC machined from 7075 T6 Aluminum, LEWIS offers precise fitting to most frames and forks.
PM-PM+20, Weight:13g. Used for 140 to 160, 160 to 180, 180 to 200.
PM-PM+40, Weight: 17g. Used for 160 to 200, 180 to 220.
High strength, strong and durable.
Colors: Silver and Black
Fit Notes
- IS type mounts are not supported.
- PM+20 covers 140mm to 203mm rotors and needs longer bolts, which are not included.
- PM+40 covers 160mm to 223mm rotors.
- Mounting bolts are not included.
A larger rotor is a common move for riders heading to longer descents, and these adapters give you that step on a post mount. Rotor math decides which one, so write down the rotor your frame or fork takes today and the one you want next.
Reading the PM+20 and PM+40 steps
PM+20 is used for 140 to 160, 160 to 180 and 180 to 200. PM+40 is used for 160 to 200 and 180 to 220. No 140 to 180 use is given for the PM+40, so that jump is not confirmed, and you should ask before planning around it.
Checking the mount on your frame or fork
Both are described for 74mm post mount, and the wording is most frames and forks, not all of them. Measure the mount on your bike, and look at the fork or frame limit on maximum rotor size too. A bigger rotor than your fork allows is not a problem any adapter can solve.
Confirming the adapter you will receive
The PM+20, the PM+40 and two anodized colors, silver and black, are named together with no option to pick between them. Ask which adapter and color is supplied before ordering. Mounting bolts are not included. Riders on LHP-U4, LHP-S4 or LHP-S6 brakes should look at the separate PM-PM+20-A adapter.
- CNC machined 7075 T6 aluminum
- Post Mount 74mm
- PM+20 for a 20mm rotor step
- PM+40 for a 40mm rotor step
- Mirror finish, anodized silver and black
After fitting, center the caliper over the rotor, tighten evenly, and spin the wheel to check for rubbing before taking the bike off the stand.
Technology
CNC Machine Cut 7075 T6 Aluminum
High Strength, Light Weight, Mirror Finish
Specifications
| Material | 7075 T6 Aluminum |
| Type: | Post Mount 74mm |
| PM +20 | Weight: 13g (Used for 140 to 160, 160 to 180, 180 to 200.) |
| PM +40 | Weight: 17g (Used for 160 to 200, 180 to 220.) |
| Color | Anodized Silver and Black |
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