Brake pad identification
Find your pad shape.
Match the full brake model and old pad shape. Dominion, Stroker, Prime and the older Hayes brakes use several different pad families. Check both brakes before ordering.
Read the complete model on both brakes. Include A4 or A2, and names such as Stroker Ryde, Prime Sport or MX-1.
Match the outline, tabs and retaining arrangement. Photos are not to scale; width alone does not confirm fit.
Check the exact product’s fitment list, rotor requirements and fitting instructions before ordering.
Find the full caliper name below. The rows identify different pad shapes; similarly named Hayes brakes do not always use the same pads.
| Model group | Caliper examples | What to check |
|---|---|---|
| Dominion A4 / T4 | A4 · A4 SFL / SRL · T4 | A4 / T4 shape; not A2 / T2. |
| Dominion A2 / T2 | A2 · A2 SFL / SRL · T2 | A2 / T2 shape; not A4 / T4. |
| Stroker Ryde / Dyno / Radar | Stroker Ryde · Dyno · Radar · Prime Sport | Ryde / Dyno / Radar / Prime Sport shape. |
| Sole / CX / MX-2–5 | Sole · CX · MX-2–5 · MX Comp / Expert / Pro · GX-2 | Sole / CX shape; excludes MX-1. |
| HFX-9 / Mag / MX-1 | HFX-9 · HFX Mag · Mag · MX-1 | HFX / Mag / MX-1 shape; excludes MX-2–5. |
Photos show example Gorilla Brakes pads, not actual size. Backing-plate colour indicates compound, not fit. Hayes references are examples; compounds and backing plates can differ.
Use the full model or complete Hayes part number. T100 and T106 are compound names used on different shapes; they do not identify fit.
No exact group found. Check the model spelling, try the pad code, or send us photos before ordering. Use the Brake Pad Finder
Dominion A4 and T4 use this four-piston pad family. It is different from the smaller Dominion A2 / T2 shape.
Dominion A4 · Dominion A4 SFL · Dominion A4 SRL · Dominion T4
SFL and SRL change the lever, not the A4 pad shape. Confirm that both calipers are A4 / T4 before ordering the same pads for both brakes.
Dominion A2 and T2 use this two-piston pad family. A4 / T4 pads do not fit these calipers.
Dominion A2 · Dominion A2 SFL · Dominion A2 SRL · Dominion T2
Identify the A2 caliper even when the lever is labelled SFL or SRL. These lever names alone do not distinguish A2 from A4.
Stroker Ryde, Dyno, Radar and Prime Sport share this pad family. Check the complete caliper name and old pad outline before ordering.
Stroker Ryde · Stroker Ryde Comp · Dyno · Dyno Comp · Dyno Sport · Radar · Prime Sport
Match the full model and old pad outline. The pad link below goes directly to the matching Sintered product.
Sole, CX and the listed MX models use this pad family. Hayes MX-1 belongs to the separate HFX-9 / Mag group.
Sole (So1e) · CX · CX Expert · CX5 · MX-2 · MX-2 XC · MX-3 · MX-4 · MX-5 · MX Comp · MX Expert · MX Pro · GX-2
Match the old pad outline and retaining arrangement. Check the selected product’s fitment list and included hardware; MX-1 pads are different.
HFX-9, HFX Mag and MX-1 use this older Hayes pad family. It is different from Sole, CX and MX-2 to MX-5.
HFX-9 · HFX Mag · Mag · HFX1 · MX-1
Keep the 1 in MX-1 when searching. The link below goes directly to the matching Semi-Metallic product.
Read the complete model on both brakes and compare the old pad outline, tabs and retaining arrangement. Keep suffixes such as A4, A2, Ryde, Sport and MX-1. A complete Hayes pad part number can help; backing-plate colour and compound names alone do not confirm fit.
No. Dominion A4 and T4 share one pad family; Dominion A2 and T2 share a different family. A4 is a four-piston caliper and A2 is a two-piston caliper. SFL and SRL describe lever versions, so identify the caliper before choosing pads.
Stroker Ryde, Stroker Ryde Comp, Dyno Comp, Dyno Sport, Radar and Prime Sport use this pad family. Include the full caliper name: Stroker or Prime alone is not enough to confirm fit.
No. T100 and T106 are Hayes compound names used on different pad shapes. Identify the full caliper model and compare the old pad outline. A complete Hayes part number, including its suffix, can help confirm the family.
No. MX-1 uses the HFX-9 / Mag pad family. MX-2 to MX-5 belong to the Sole / CX family, which also includes the listed MX Comp, Expert and Pro models. Match the exact caliper and old pad before ordering.
Check the chosen product’s pack contents. If a pack covers one caliper, you need two packs to replace the pads in both brakes. Identify each caliper separately first, because a bike may have different front and rear brakes.
Add Gorilla Brakes as a Preferred Source to see more of our compatibility guides, setup advice and product updates in Google results.
