For the latest-generation option, see the Strummer HR-360 Ratchet Gen-2 Hub. Specifications and compatibility may differ.
Designed for high performance on the road while remaining durable enough to handle gravel conditions, the Strummer HR-360 Centerlock is an ideal choice for road disc and gravel bikes.
Using a 4-pawl mechanism with 48 Engagement Points (7.5°), this hub delivers responsive and efficient power transfer from the pedals to the wheel, resulting in faster and more solid acceleration.
Manufactured with high precision using a combination of AL6061-T6 and AL7075-T6 materials, then finished and anodized to Strummer's high standards, it ensures durability and a premium appearance.
Product Specifications
| Specification | Detail |
|---|---|
| Front Hub | Ø12 x 100 mm, 130 g |
| Rear Hub | Ø12 x 142 mm, 242 g |
| Spoke Compatibility | 14G Round Spokes |
| Cassette Compatibility | HG Road |
| Brake System | Centerlock Rotor |
| Material | AL6061-T6 Body & AL7075-T6 Axle |
| Bearings | 2 (Front) & 4 (Rear) Sealed Bearings |
| Engagement Points | 48 Points |
| Engagement Angle | 7.5° |
Replacement Bearings
| Position | Bearing Type | Dimensions (ID × OD × Thickness) | Quantity | Steel (SKU) | Hybrid Ceramic (SKU) |
|---|---|---|---|---|---|
| Front Hub | 6902-2RS | 15 × 28 × 7 mm | 2 pcs | LAHAR-00011 | LAHAR-00017 |
| Rear Hub | 6902-2RS | 15 × 28 × 7 mm | 2 pcs | LAHAR-00011 | LAHAR-00017 |
| Freehub Body | 15267-2RS | 15 × 26 × 7 mm | 2 pcs | LAHAR-00012 | LAHAR-00014 |
Match the code, dimensions, and seal with the old bearing before purchasing. Hybrid Ceramic is an upgrade option if the type and size are compatible.
Available Spare Parts & Tools
- Strummer Centerlock to 6-Bolt Disc Brake Adapter
- Strummer Centerlock Lock Ring
- Strummer BBT-HT2 Bottom Bracket Tool (for installing the lock ring)
- Strummer Pawl & Ratchet Special Grease
- 9 x 100 mm End Cap (Front)
- 10 x 135 mm End Cap (Rear)
- 10 x 142 mm End Cap (Rear)
- Plastic Retaining Ring for Pawl
- Freehub Body Rubber Seal
(OD 39.5 mm × ID 32.6 mm × Thickness 3 mm)
Bicycle Compatibility
(Guide based on frame and fork dimensions. Please verify again before installation.)
UNITED
- United Gavriil (2021) — Plug & Play
- United Sterling R1 Disc (2021–2022) — Plug & Play
- United Sterling R2 Disc (2021–2022) — Plug & Play
POLYGON
- Polygon Bend R2 (2021) — Plug & Play
- Polygon Bend R5 (2021) — Plug & Play
- Polygon Strattos S5 Disc (2021–2022) — Plug & Play
- Polygon Strattos S7 Disc (2021–2022) — Plug & Play
- Polygon Strattos S8 Disc (2021–2022) — Plug & Play
Important Notes
- The compatibility list is provided as a guide only (especially for axle dimensions and frame/fork width)
- New spokes or a new rim may be required when replacing only the hub
B2B Information (for Dealers)
Pack quantities vary by variant:
- Front & Rear (20/24H) (SKU: HUB-00115MTBK): 20 sets
- Front & Rear (24/24H) (SKU: HUB-00098MTBK): 20 sets
- Front & Rear (28/28H) (SKU: HUB-00109MTBK): 20 sets
- Front & Rear (32/32H) (SKU: HUB-00099MTBK): 20 sets
- Front (20H) (SKU: HUB-00117MTBK): 20 pcs
- Front (24H) (SKU: HUB-00118MTBK): 20 pcs
- Front (28H) (SKU: HUB-00124MTBK): 20 pcs
Rear Hub (Freehub) Maintenance Note
Grease lubricates the parts that rub against each other in the rear hub's freehub mechanism, helping reduce friction and wear. Removing all the grease just to obtain 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.
