Promax IS to Post Mount Disc Brake Adapter Fits 180mm Rear Rotors

Promax IS to Post Mount Disc Brake Adapter – Upgrade Your Braking System

Tired of limited rotor compatibility on your mountain bike? The Promax Adapter solves this by converting standard IS mounts to post-mount setups, unlocking 180mm rear rotors for superior stopping power and heat dissipation. Ideal for aggressive descents or heavy loads, this adapter ensures safe braking without costly frame replacements.

Key Features:
– Universal Fitment: Works with Shimano/SRAM hydraulic disc brakes and frames using IS mount standards (e.g., older mountain bikes).
– 180mm Rotor Support: Enables larger rotors for enhanced grip and reduced brake fade compared to standard 160mm setups.
– Durable Design: CNC-machined aluminum alloy resists corrosion and withstands rugged trails (tested up to 300 lbs load capacity).
– Tool-Free Installation: Quick-release design snaps onto existing IS mounts; no permanent frame modifications required.

Why Choose Promax?
| Feature | Promax Adapter | Competitor Adapter |
|————————-|———————|———————|
| Rotor Size Support | Up to 180mm rear | Limited to 160mm |
| Material | Aircraft-grade Al | Generic steel |
| Weight | 85g | 120g+ |

Perfect for trail riders and commuters seeking a cost-effective brake upgrade, this adapter maintains smooth lever action while expanding rotor options. Compatible with most hardtails and full-suspension frames (check dimensions pre-purchase).

Don’t let outdated mounts restrict your bike’s potential—install the Promax adapter today for reliable performance on any terrain.