TOOPRE Bicycle Hydraulic Disc Brake Caliper Piston Reset Tool for MTB Road Bike, Aluminum Brake Pad Spreader for 2/4-Piston Calipers

Make hydraulic disc brake maintenance easier and safer with the TOOPRE TL-233 Bicycle Brake Caliper Piston Reset Tool. Designed for mountain bikes and road bikes, this tool helps push caliper pistons back evenly after brake pad removal or replacement, preventing uneven pressure and reducing the risk of piston damage.

Made from high-strength aluminum alloy with CNC machining, anodized finish, and fine sandblasted surface treatment, the TL-233 is lightweight, durable, and comfortable to use. Its flat-push structure provides balanced force on both sides, making it suitable for many 2-piston and 4-piston hydraulic disc brake calipers.

Key Features

• For Hydraulic Disc Brake Maintenance
  Ideal for resetting brake caliper pistons when replacing brake pads or servicing hydraulic disc brakes.

• Compatible with 2/4-Piston Calipers
  Suitable for most MTB and road bike hydraulic disc brake calipers with an open-top design and centered brake pad retaining bolt hole.

• Even Flat-Push Design
  Applies balanced pressure to both sides of the caliper piston, helping prevent ceramic pistons from cracking or tilting.

• High-Strength Aluminum Alloy Body
  Lightweight yet sturdy aluminum construction for reliable workshop or home maintenance use.

• CNC Machined & Smooth Edges
  Precision CNC processing with rounded chamfers for a refined finish and safer handling.

• Smooth Threaded Screw Mechanism
  Fine thread design provides smooth, controlled, and labor-saving operation.

• Comfortable T-Handle Knob
  57 mm one-piece T-shaped handle offers a comfortable grip and easy turning.

• Anodized Finish, Multiple Colors
  Available in black, blue, and red, with a durable anodized coating and fine sandblasted texture.

Specifications

Compatibility

Compatible with most hydraulic disc brake calipers, including:

• SHIMANO MTB / Road 2-piston brake calipers
• SHIMANO 4-piston brake calipers
• SRAM 2-piston / 4-piston brake calipers
• Most calipers with an open upper structure and a centered brake pad retaining bolt
• Also suitable for many mainstream 2/4-piston calipers such as Shimano, SRAM, Magura, Hope and similar designs

How to Use

1. Remove the worn brake pads and the pad retaining bolt from the caliper.
2. Insert the piston reset tool into the brake caliper and align the tool hole with the pad retaining bolt hole.
3. Install the pad retaining bolt to secure the tool in place.
4. Turn the handle clockwise to expand the tool and push the pistons back evenly.
5. Once the pistons are reset, turn the handle counterclockwise to retract the tool.
6. Remove the retaining bolt, then take out the tool.

Note

Do not pull the tool out by force before loosening the screw mechanism. Always retract the tool first to avoid damaging the caliper or the tool.