Shimano XTR SM-RT99 Disc Rotor

Shimano XTR SM-RT99 Ice-Tech FREEZA Disc Brake Rotor

Laser-Focused Heat Control. Pro-Grade Braking.

For riders who demand consistency on every descent, the Shimano XTR SM-RT99 rotor delivers. With tri-layer Ice-Tech construction and FREEZA cooling fins, it keeps braking performance sharp when the trail (and your speed) heats upperfect for aggressive mountain and gravel riders.

Key Features

• Ice-Tech Triple-Layer Construction
  Engineered with stainless steel outer plates bonded to an aluminum core, this design rapidly disperses heatcutting braking surface temperatures by up to 50 0C. Paired with Ice-Tech pads, it brings temps from around 400 0C to 300 0C, helping to maintain brake consistency and reduce fade.

• Enhanced Freeza Cooling Fins
  The aluminum core extends beyond the braking surface into large fins for passive heat-dissipation, delivering more efficient cooling than ever beforeand better stopping power deeper into descents.

• Stiff, Lightweight Design
  The stonily rigid aluminum spider structure keeps weight downaround 95 g for 140 mmwithout sacrificing strength or rotor stability.

• Center-Lock Mounting for Hassle-Free Setup
  Shimanos Center-Lock system not only keeps the rotor secure, but also streamlines installation and alignment.

• All-Terrain Ready
  Drilled and precision-machined braking surface clears mud swiftly, retains bite in variable conditions, and pairs seamlessly with both resin and metal pads.

Technical Overview

Why Cyclesy Recommends It

• Fade-Free Performance Keeps braking cool and consistenteven under glaring descents.

• Light & Rigid Aluminum spider maintains rotor stability while shaving grams.

• All-Season Versatility Handles mud, rain, and dirt without compromising bite.

• Pro-Proof Performance Built for serious riders who demand precision, durability, and heat control.

Upgrade your braking system to the Shimano XTR SM-RT99 Ice-Tech FREEZA rotorwhere reliability meets high-temperature resilience.