Shimano SM-RT70 Disc Rotor - External Spline 140mm
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Shimano SM-RT70 Disc Rotor - External Spline 140mm
Shimano SM-RT70 Disc Rotor - External Spline 140mm Info
The Shimano SM-RT70 Disc Rotor is built around a layered Ice-Tech construction — a stainless steel braking surface bonded to an aluminum core. That aluminum layer does the thermal work, drawing heat away from the braking surface during sustained descents or repeated hard stops where lesser rotors start to fade.
At 140mm, this rotor suits riders who want reliable modulation and consistent bite without excessive stopping aggression — a sensible pairing for road, gravel, or cross-country use. The external spline interface is compatible with all axle types, so it mounts cleanly across a wide range of wheelsets and hubs without adapters or fuss.
Shimano SM-RT70 Disc Rotor - Specs at a Glance
- Diameter: 140mm
- Construction: Ice-Tech — stainless steel braking surface with aluminum core
- Interface: External spline (center-lock)
- Axle compatibility: All axle types
- Intended level: SLX / 105-tier
