Heavy Hitter builds the 220mm Rear Brake Rotor Upgrade 3mm Thick SR/3.0 for the rear wheel of the E Ride Pro-SS 3.0, Pro-SS 4.0 and Pro-SR, and GritShift sells it. The heat-treated 410 stainless steel disc is 220 mm across and 3.00 mm thick, weighs 1.4 lb and uses an M6 x 80 mm bolt pattern.
Specs verified September 2026 against the live GritShift product page.
Specifications
| Position | Rear wheel |
|---|---|
| Diameter | 220 mm |
| Thickness | 3.00 mm |
| Bolt pattern | M6 x 80 mm |
| Material | Heat-treated 410 stainless steel |
| Weight | 1.4 lb |
| Construction | Localized thickening in critical cross sections |
| Design | Maximum pad surface area and heat dissipation |
| Mounting hardware | Not included; reuses the existing rotor bolts |
What bikes does the SR/3.0 rear rotor fit?
- E Ride Pro-SS 3.0
- E Ride Pro-SS 4.0
- E Ride Pro-SR
Which E Ride models take this rear rotor?
Only the E Ride Pro-SS 3.0, Pro-SS 4.0 and Pro-SR. Owners of the E Ride Pro-S, Pro-SS or Pro-SS 2.0 need the standard Heavy Hitter 220mm Rear Brake Rotor Upgrade 3mm Thick, which uses an M6 x 54 mm bolt pattern and also covers the Sur Ron Light Bee X, Segway X160 and X260 and several other e-motos. This SR/3.0 disc is drilled on an M6 x 80 mm pattern.
What is the rotor made of?
Heat-treated 410 stainless steel, machined 3.00 mm thick with localized thickening in the critical cross sections. Heavy Hitter chose that combination so the rotor delivers serious braking performance without warping and holds up to the heat and load of aggressive e-moto riding, where most aftermarket rotors fail. Across its 220 mm diameter the disc is designed for maximum pad surface area and heat dissipation, and the heat treatment is there for durability and a long service life.
Are mounting bolts included?
No. Heavy Hitter states that you will need to reuse your existing mounting bolts, so keep the bolts from the stock rear rotor. A front disc for the same bikes is the Heavy Hitter 220mm Front Brake Rotor Upgrade 3mm Thick SR/3.0.
Where can I get it?
The Heavy Hitter 220mm Rear Brake Rotor Upgrade 3mm Thick SR/3.0 is made by Heavy Hitter and sold by GritShift.
