Strummer HR-500 is a road and gravel hub with a Straightpull 24H system, Centerlock rotor mount, a CNC-machined body, and Easy-Pull End Caps for easier maintenance or adapter replacement.
The rear hub uses a 54T Ratchet system for fast and responsive engagement.
Specifications
| Specification | Front Hub | Rear Hub |
|---|---|---|
| Axle Standard | 12x100 mm Thru Axle | 12x142 mm Thru Axle |
| Hole Count | 24H | 24H |
| Rotor Mount | Centerlock | Centerlock |
| Spoke System | Straightpull | Straightpull |
| End Cap | Easy-Pull End Cap | Easy-Pull End Cap |
| Body Process | CNC-Machined | CNC-Machined |
| Freehub Standard | — | HG Road |
| Compatible Speeds | — | 8–12 Speed |
| Engagement System | — | 54T Ratchet |
| Weight | ±120 grams | ±240 grams |
Bearing Sizes
HR-500 is available in two bearing versions, depending on the production version.
| Version | Position | Bearing Type | Dimensions (ID × OD × Thickness) | Quantity | Steel (SKU) | Hybrid Ceramic (SKU) |
|---|---|---|---|---|---|---|
| Version 1 | Front Hub | 15267-2RS | 15 × 26 × 7 mm | 2 pcs | LAHAR-00012 | LAHAR-00014 |
| Version 1 | Rear Hub | 6902-2RS | 15 × 28 × 7 mm | 1 pc | LAHAR-00011 | LAHAR-00017 |
| Version 1 | Rear Hub | 15267-2RS | 15 × 26 × 7 mm | 1 pc | LAHAR-00012 | LAHAR-00014 |
| Version 1 | HG Freehub Body | 15267-2RS | 15 × 26 × 7 mm | 2 pcs | LAHAR-00012 | LAHAR-00014 |
| Version 2 (Latest) | Front Hub | 6803-2RS | 17 × 26 × 5 mm | 2 pcs | LAHAR-00050 | LAHAR-00023 |
| Version 2 (Latest) | Rear Hub | 6902-2RS | 15 × 28 × 7 mm | 1 pc | LAHAR-00011 | LAHAR-00017 |
| Version 2 (Latest) | Rear Hub | 15267-2RS | 15 × 26 × 7 mm | 1 pc | LAHAR-00012 | LAHAR-00014 |
| Version 2 (Latest) | HG Freehub Body | 6802-2RS | 15 × 24 × 5 mm | 2 pcs | LAHAR-00009 | LAHAR-00018 |
Match the code, dimensions, and seals with the old bearing before purchasing. Hybrid Ceramic is an upgrade option when the type and size are compatible.
In the latest version, the freehub body receives additional CNC machining to reduce weight. The Centerlock side has also been optimized to reduce weight.
Compatible Spare Parts and Adapters
| Spare Part / Adapter | SKU |
|---|---|
| XDR Freehub Body | PARTS-00062 |
| Microspline Freehub Body | PARTS-00063 |
| HG Road Ratchet Ultralight Freehub Body | PARTS-00075BK |
| Universal Hub Adapter TA 12x100 mm to QR 9x100 mm | ADT-00085BK |
| Universal Hub Adapter TA 12x142 mm to QR 10x142 mm | ADT-00086BK |
| 10x135 mm Hub End Cap for HG Road Rear Hub | ADT-00057BK |
Compatibility Notes
Before installation, make sure the frame and fork axle standards, rotor type, and cassette type match the hub specifications.
For SRAM XDR or Microspline cassettes, the standard freehub body must be replaced with a compatible freehub body listed above.
B2B Information (for Dealers)
Pack quantity: 20 sets
Rear Hub Maintenance Note (Freehub)
Grease lubricates the parts that rub against each other in the rear hub freehub mechanism, 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.
Calculating Spoke Length
HR-500 uses a straightpull spoke system. Use the Strummer Spoke Calculator and select the appropriate hub model.
Conversion to QR 9×100 and 10×135
Use adapter ADT-00085BK at the front for QR 9×100 mm and end cap ADT-00057BK at the rear for QR 10×135 mm with an HG Road freehub. Make sure the sizes match the frame and fork.