The NGage HB 163 and HBS 163 rear brake pads are disc brake pads developed for the rear brake caliper used on Triumph’s 400-series motorcycles, including the Speed 400, Scrambler 400X, and T4. These pads are manufactured to match the exact pad shape, mounting dimensions, and contact profile required by the rear brake system fitted to these motorcycles, ensuring correct physical fitment and consistent disc engagement.

This product listing applies strictly to the rear brake position. The front brake pads for these models use different pad codes and are listed separately.

Rear brake pads play a critical stabilizing role in a motorcycle’s braking system. While the front brake provides the majority of stopping force, the rear brake contributes to balance, low-speed control, corner stability, and controlled deceleration. A rear brake pad must deliver predictable bite, smooth modulation, and stable friction behavior across varying temperatures and road conditions.

NGage offers the HB 163 rear brake pad shape in two distinct friction material variants: Whisker Ceramic (HB 163) and Sintered (HBS 163). Both variants share identical physical dimensions and mounting geometry. The difference lies entirely in the friction compound formulation and its behavior under load and temperature.

Whisker Ceramic Variant — HB 163

The HB 163 Whisker Ceramic brake pads use a ceramic-based friction compound reinforced with fiber-like whiskers. This compound is engineered to deliver controlled braking response, predictable modulation, and stable friction output during everyday riding conditions.

The ceramic matrix provides smooth engagement at the brake lever and progressive braking force buildup, making it well-suited for urban commuting, highway touring, and mixed riding environments. The whisker reinforcement enhances structural stability within the friction layer, helping the pad maintain consistent surface behavior during repeated braking cycles.

This compound is designed for riders who prioritize refined rear brake feel, controlled deceleration, and low-noise operation while maintaining reliable braking performance under normal thermal loads.

Sintered Variant — HBS 163

The HBS 163 Sintered brake pads use a metallic friction compound formed by fusing metal powders under high temperature and pressure. This manufacturing process produces a dense, durable friction material with high thermal stability and consistent friction output under elevated braking loads.

Sintered brake pads are engineered to tolerate higher operating temperatures and maintain braking performance during repeated hard braking, high-speed riding, and extended downhill descents. The metallic composition offers stronger initial bite and sustained friction consistency under conditions where brake heat buildup is significant.

This compound is intended for riders who operate in aggressive riding conditions, carry heavier loads, or frequently ride in environments that generate higher rear brake temperatures.

Fitment & Compatibility

This listing applies to the rear brake position on the following motorcycles:

Compatibility (Rear Brake Only)
Triumph Speed 400
Triumph Scrambler 400X
Triumph T4

The HB 163 and HBS 163 pad shape is shared across these three models for the rear caliper. Front brake pads use different pad codes and must be purchased separately.

Variant Explanation

This product is available in two NGage material variants:

HB 163 — Whisker Ceramic Brake Pads
Ceramic-based friction compound
Optimized for smooth braking response
Predictable modulation and controlled rear brake feel
Stable friction behavior under normal thermal loads
Suitable for daily riding, touring, and mixed conditions

HBS 163 — Sintered Brake Pads
Metallic sintered friction compound
Higher temperature tolerance
Stronger braking bite under load
Consistent friction during repeated braking
Suitable for aggressive riding and high-heat conditions

Both variants are identical in shape, thickness profile, and mounting design. Only the friction compound differs.

Specifications

Brand: NGage
Product Type: Motorcycle Disc Brake Pads
Position: Rear
Pad Codes: HB 163 (Whisker Ceramic), HBS 163 (Sintered)
Material Options: Ceramic-based or Metallic Sintered
Certification: ARAI Tested
Manufacturing Origin: Japan
Application Type: Rear brake caliper
Mounting: Direct replacement design

Installation / Usage Notes

• Designed as a direct replacement for the stock rear brake pads
• No modification required for compatible models
• Install only in the rear brake caliper
• Ensure brake caliper pistons are properly retracted before installation
• Clean the caliper bracket and pad guide surfaces prior to fitting
• Bedding-in procedure is recommended after installation
• Avoid aggressive braking for the first 100–150 km to allow proper pad transfer
• Professional installation is advised for optimal braking performance

Correct bedding-in is essential to achieve stable friction behavior and consistent braking feel. Improper bedding may result in uneven pad wear or reduced braking efficiency.