The SRAM HS2 is a 2-piece disc brake rotor designed for use with SRAM hydraulic disc brakes. The two-piece construction — a stainless steel braking surface bonded to an aluminium spider — reduces weight compared to a full-steel rotor while maintaining the heat dissipation characteristics needed for consistent braking on extended descents.

Highlights

  • 2-piece disc rotor — stainless braking ring, aluminium spider
  • Designed for SRAM hydraulic disc brake systems
  • Available in multiple diameters (confirm size before ordering)
  • 6-bolt mount — compatible with standard IS and post-mount adapters
  • Reduced weight compared to full stainless rotors

Two-piece construction

A full-steel rotor is heavier than necessary — most of that weight is in the spider, which doesn't contact the pads. SRAM's HS2 keeps stainless steel only where it matters (the braking track) and uses aluminium for the spider, which doesn't need to withstand pad friction. The result is a lighter rotor with comparable braking performance and heat management.

Fit and compatibility

6-bolt mount. Compatible with SRAM and Shimano 6-bolt hubs. Works with all SRAM hydraulic brake systems. Confirm rotor diameter matches your brake caliper's specification and wheel size. Use with compatible IS/post-mount adapters for your caliper mount type.

Installation. Service. Compatibility. Find all the documentation needed to set up, use, and maintain your components in the SRAM Service hub.

Visit product service page
Features
  • Thicker 2.00mm rotor
  • Superior heat management
  • 7% more power
  • Available in 6 bolt and Centerlock

Specifications

Diam (Rotor) 160mm, 180mm, 200mm, 220mm
Color (RT) n/a
Bolt material (RT) n/a, Steel
Hub interface 6-bolt, Center Lock
Rotor Type HS2, HS2 Centerlock
Rec Lockring n/a, SRAM Lockring included
SKU SRM-RT-HS-2-A1
Model # RT-HS-2-A1
Barcode # RT-HS-2-A1
Brand SRAM