Brake spare part aimed at restoring caliper function and dependable stopping power, Hope Mono M4 Caliper Piston. Riders and mechanics seeking a targeted replacement will appreciate the simple, direct compatibility and clear part code. Is this the correct single-piston solution for workshops and home repairs?
⚡ At a Glance
- • Braking Precision: Phenolic replacement piston sized 16mm for accurate seating in caliper bore
- • Best for: Home mechanics and workshop technicians replacing a worn caliper piston
- • Not ideal for: Calipers with a piston diameter other than 16mm or non-compatible designs
Replacement phenolic caliper piston sold as a single unit, Hope part code HBSP136. Designed to fit Hope Mono M4 (large piston) and V4 (small piston) calipers with a 16mm bore.
Direct Replacement Fit – With a 16mm phenolic piston
Piston diameter matches the 16mm bore specified for Mono M4 large and V4 small piston positions, identified by Hope part code HBSP136. Phenolic material denotes the piston type listed in the product description.
Correct sizing and material make replacement straightforward during a brake service. Accurate fit helps restore pad engagement geometry when performing routine maintenance.
Clear Parts Identification – Thanks to HBSP136 product code
Hope product code HBSP136 is supplied alongside the single piston, providing an exact reference for ordering and stock control. Packaging or part listings use the same code for verification.
Using the part code removes guesswork when sourcing spares and ensures the correct piston is obtained for Mono M4 and V4 calipers. Suitable for workshops that manage parts by SKU.
Single-Piston Supply – With one caliper piston included
Product contents explicitly list one caliper piston per sale, allowing targeted repairs or gradual stock replenishment. No additional pistons or hardware are included according to the description.
Buying a single piston suits repairs where only one replacement is needed, avoiding surplus parts. Ideal for occasional maintenance or when replacing a single damaged piston.
✨ The 4 Key Reasons for Hope Mono M4 Caliper Piston
- Phenolic piston – Exact 16mm fit for specified Hope calipers and bores
- HBSP136 product code – Easier to order correct replacement part from dealer
- Single unit supply – Includes one piston, ideal for spot repairs at workshop
- Compatible calipers – Matches mounting positions on Mono M4 and V4 series
📋 Technical Details at a Glance
- Category: BISS
- Brand: Hope
- Product ID: B00E3U04ZY
- Part number: HBSP136
- Type: Caliper piston
❓ Frequently Asked Questions
Q: Will this piston fit my Mono M4 or V4 caliper?
A: Fits Mono M4 (large piston) and V4 (small piston) calipers, specified for a 16mm bore according to the product description.
Q: How many pistons are included with the part?
A: Includes one caliper piston, the listing specifies a single unit per purchase.
Q: What is the piston made from?
A: Described as a replacement phenolic caliper piston, the material type is phenolic as stated in the product information.
🏆 Our Verdict
Suitable for riders, home mechanics and workshops that need an exact phenolic piston replacement for Hope Mono M4 and V4 calipers. Clear part identification with HBSP136 and a single-unit supply make ordering and targeted repairs straightforward. A simple, focused spare that supports reliable braking maintenance and long-term serviceability.
