The Strummer HR-20 hub set is one of the best hub options for your road bike. Designed to be fast on the road, lightweight on climbs, and durable enough to handle water, dust, and various other conditions. The 4-Pawl mechanism drives the bike forward by consistently transferring power from the pedals to the wheel.
Each hub is precisely manufactured using a combination of AL6061-T6 and AL7075-T6 alloy, then undergoes finishing and anodizing processes according to our high standards. Our hub range offers various options and accessories to accommodate different axle sizes, spoke-hole counts, disc-brake rotor mounts, cassette sprocket systems, and colors.
Specifications
- Front Hub: QR 9 x 100 mm, 14G spokes, 32 holes, 2 sealed bearings, 107 g
- Rear Hub: QR 10 x 130 mm, 14G spokes, 32 holes, 4 sealed bearings, 190 g
- Sprocket Compatibility: Compatible with Shimano 11s Hyperglide (4 Pawls)
- Material: AL6061-T6 body & AL7075-T6 axle
- Braking Mechanism: Rim Brake (V-Brake, U-Brake, etc.)
- Includes: 1.85 mm rear hub spacer, front & rear quick-release skewer set
Wheel Building
Spoke length guide using the Strummer HR-20 hub set (32/32H) for the Strummer Race 700 rim (32/32H) & Strummer AeroRoad rim (32/32H)
| Spoke Guide | Radial (mm) | 1-Cross (mm) | 2-Cross (mm) | 3-Cross (mm) | ||||
| Left | Right | Left | Right | Left | Right | Left | Right | |
| Front Hub (32H) | 272.0 | 272.0 | 273.5 | 273.5 | 277.8 |
277.8 |
284.2 |
284.2 |
| Rear Hub (32H) | 266.9 | 264.9 | 268.9 |
266.9 |
274.5 |
272.6 |
282.8 |
280.9 |
Replacement Bearings
| Position | Bearing Type | Dimensions (ID × OD × Thickness) | Quantity | Steel (SKU) | Hybrid Ceramic (SKU) |
|---|---|---|---|---|---|
| Front Hub | 6901-2RS | 12 × 24 × 6 mm | 2 pcs | LAHAR-00010 | LAHAR-00016 |
| Rear Hub | 15267-2RS | 15 × 26 × 7 mm | 1 pc | LAHAR-00012 | LAHAR-00014 |
| Rear Hub | 6802-2RS | 15 × 24 × 5 mm | 1 pc | LAHAR-00009 | LAHAR-00018 |
| Freehub Body | 15267-2RS | 15 × 26 × 7 mm | 2 pcs | LAHAR-00012 | LAHAR-00014 |
Match the code, dimensions, and seals with the old bearing before purchasing. Hybrid Ceramic is an upgrade option if the type and size are compatible.
Available Spare Parts & Service Tools
Strummer Pawl & Ratchet Special Grease
Freehub Body Rubber Seal
1.85 mm Sprocket Spacer
Rear Hub (Freehub) Maintenance Notes
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 solely 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.
