Shimano Steps RT-MT900 Ice Tech FREEZA Disc Rotor With Magnet

• FREEZA rotors allow the alloy core to extend out from the braking surface as a fin to providing added cooling
• Ice Tech rotors achieve long pad life, less noise and less fade due to improved heat dispersion
• With internal lockring housing the magnet necessary for speed sensor function on Shimano STEPS equipped E-bikes allowing frame clearance for wider tyres
• Rotors are durable lightweight and rigid, using the proven Shimano Center Lock system giving increased strength and security with an easy set-up
• Precision cut and drilled braking surface improves pad clearing in muddy conditions while aiding cooling under high load
• Large alloy spider is a highly rigid and lightweight support for the rotor surface
• Super polished braking surface gives excellent braking performance                                                                                          
• Size options: 160mm, 180mm or 203mm

RT-MT900 Ice Tech E-bike rotors with built in speed sensor magnet providing consistent braking performance through energy control.

The RT-MT900 uses the revolutionary stainless steel / alloy 3-layer sandwich construction that manages heat while riding. The clad steel / alloy / steel rotor construction allows heat generated from braking to radiate quickly through the aluminium core achieving surface temperature drops of around 50 deg C. When used with Ice Tech pads surface temperatures can drop from around 400 to 300 deg C, this provides great improvements in performance all round.