Surly ECR Frameset - 27.5+ Steel Tank Green Small. The ECR is Surly’s ultimate off-road touring machine. It has been re-designed specifically for 27.5+ or 29+ wheel platforms and has been updated to include Surly’s Gnot-Boost rear hub spacing; compatible with Boost 148 x 12mm thru-axle 142 x 12mm thru-axle and 135mm quick-release hubs.Surly 4130 CroMoly steel main triangle double-butted frame
TIG-welded horizontal-slotted dropout with derailleur hanger Surly Gnot-Boost spacing
Rohloff torque arm slot and threaded eyelets for fenders racks and Surly trailer mounts
Full-length Surly Trip Guide housing line guides for derailleurs and brakes; two sets of Three Pack bosses
Frame is ED Coated for increased life expectancy
Tire clearance for 27.5 x 3" with fenders
- TECH SPECS
| Mfg Size | Small |
| Defined Color | Green |
| Rear Axle | 12mm Thru x 145mm |
| Wheel Size | 27.5+ |
| Platform | ECR |
| Frame Material | Steel |
| Frame Type | Rigid |
| Front Axle | QR x 100mm |
| Color | Tank Green |
| TT (Effective) | 547 |
| Brake Type | Disc |
| Fork Type | Rigid |