For the latest-generation option, see the Strummer HR-360 Ratchet Gen-2 Hub. Specifications and compatibility may differ.
Strummer HR-360 Centerlock is an ideal hub choice for road disc and gravel bikes, designed to provide a balance between speed on smooth roads and durability on uneven surfaces.
Using a 36T Ratchet mechanism, this hub delivers a 10° engagement angle, providing efficient power transfer from the pedals to the wheelset for responsive and stable performance.
This mechanism can also be upgraded to a 60T Star Ratchet, which improves pedaling response with a 6° engagement angle, feeling faster especially when accelerating from a standstill.
Product Specifications
| Specification | Details |
|---|---|
| Front Hub | Ø12 x 100 mm, 130 g |
| Rear Hub | Ø12 x 142 mm, 242 g |
| Spoke Compatibility | 14G Round Spokes (Round) |
| Cassette Compatibility | HG Road |
| Brake System | Centerlock Rotor |
| Material | AL6061-T6 Body & AL7075-T6 Axle |
| Bearings | 2 (Front) & 4 (Rear) Sealed Bearings |
| Mechanism | 36T Ratchet |
| Engagement Angle | 10° (36T) / 6° (60T Upgrade) |
Replacement Bearings
| Position | Bearing code | Quantity |
|---|---|---|
| Front hub | Not confirmed | Not confirmed |
| Rear hub | 6902-2RS | 2 pcs |
| Freehub body | 15267-2RS | 2 pcs |
Match the code, dimensions, and seals with the old bearing before purchasing. Hybrid Ceramic is an upgrade option if the type and size are suitable.
B2B Information (for Dealers)
Pack contents: 20 sets
Rear Hub Maintenance Notes (Freehub)
Grease lubricates the parts that rub against each other in the freehub mechanism of the rear hub, helping reduce friction and wear. Removing all the grease solely to produce a louder sound is not recommended. Without adequate lubrication, components may wear out or become damaged more quickly, shortening their service life. Use the type and amount of lubricant recommended for product maintenance.
Replacement freehub body
Replacement freehub bodies are available. Match the HR-360 Ratchet generation, cassette standard, and compatibility list on the freehub body product page before purchasing.
Shimano CS-R7000 Cassette
HR-360 Ratchet Gen-1 with an HG Road freehub is compatible with the Shimano CS-R7000 11-speed 11–28T.
Compatible adapter references
The following adapters and end caps are sold separately. Match the model, generation, hub position, fork/frame standard, and freehub configuration before purchasing.
| Adapter / end cap | Function and compatibility |
|---|---|
|
Universal Hub Adaptor front SKU: ADT-00085BK |
12×100 mm thru axle → 9×100 mm QR; choose the front ADT-00085BK variant. |
|
Universal Hub Adaptor rear SKU: ADT-00086BK |
12×142 mm thru axle → 10×142 mm QR; choose the rear ADT-00086BK variant. Width remains 142 mm, not 135 mm. |
|
QR 10×135 mm Gen-1 rear end cap SKU: ADT-00057BK |
For HR-360 Gen-1 only; do not use the Gen-2 version. |
| QR 10×142 mm Gen-1 rear end cap | End cap option for HR-360 Gen-1. |
| 12×142 mm Gen-1 rear thru-axle end cap | Replacement for the HR-360 Gen-1 thru-axle configuration. |
