SRAM Guide R User Manual

7Troubleshooting
Troubleshooting
NOTICE
Do not apply DOT brake fluid or grease to caliper pistons when performing troubleshooting procedures. Use of DOT brake fluid or grease can
diminish braking performance and cause rotor rubbing.
If your brakes exhibit excessive lever throw or spongy feel, perform the following steps before bleeding the system:
1. Clamp the bicycle into a bicycle work stand.
2. Remove the wheel from the affected caliper.n
3. Remove the brake pads.
4. Install the pad spacer.
5. Squeeze the brake lever several times until the pistons have advanced and contact the pad spacer. One piston may move faster than the other;
continue to squeeze the lever until the pistons touch the spacer.
6. Remove the pad spacer.
7. Use a plastic tire lever to push the pistons back into the caliper bores.
8. Repeat steps 4-7 until the pistons move freely.
9. Install the brake pads and the wheel.
10. Loosen the caliper bolts.
11. Lightly squeeze
(approx. 4 lbs) the brake lever several times to position the brake pads to the proper distance from the rotor.
12. Center the caliper on the rotor, and tighten the caliper bolts.
13. Spin the wheel and check the brake function. The pistons should move freely and there should not be excessive brake lever throw. If there is no
improvement in the brake function, proceed with caliper service.

SRAM Guide R Specifications

General

Brake Type	Hydraulic Disc
Lever Material	Aluminum
Caliper Design	2-piece
Fluid Type	DOT 5.1
Pad Material	Organic
Caliper Material	Aluminum
Piston Count	4
Rotor Size Compatibility	140mm, 160mm, 180mm, 200mm
Rotor Compatibility	CenterLine
Reach Adjust	Yes

Summary

Caliper Service

Caliper Service Parts and Tools

Lists necessary parts, safety supplies, lubricants, and tools for SRAM Guide caliper service.

Caliper Exploded View

Detailed visual breakdown of SRAM Guide caliper components for service identification.

Caliper Brake Pad Removal

Step-by-step guide on how to safely remove brake pads from the caliper.

Caliper Piston Removal

Instructions for safely removing pistons from the caliper body halves.

Caliper Piston Installation

Procedure for correctly installing pistons back into the caliper bores.

Lever Service

Lever Service Parts and Tools

Lists parts, safety supplies, lubricants, and tools for SRAM Guide lever service.

Guide RS Lever Exploded View

Visual diagram of Guide RS lever components for service reference.

Guide R Lever Exploded View

Visual diagram of Guide R lever components for service reference.

Lever Blade Removal

Step-by-step guide on how to remove the lever blade from the brake lever body.

Piston Assembly Removal

Instructions for removing the piston assembly from the lever body.

Piston Assembly Installation

Procedure for installing the piston assembly correctly into the lever body.

RS Lever Blade Installation

Detailed steps for reassembling the lever blade for RS models.

R Lever Blade Installation

Detailed steps for reassembling the lever blade for R models.

Disc Brake Pad and Rotor Bed-in Procedure