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.
Frame is ED Coated for increased life expectancy
Full-length Surly Trip Guide housing line guides for derailleurs and brakes; two sets of Three Pack bosses
Rohloff torque arm slot and threaded eyelets for fenders, racks and Surly trailer mounts
Surly 4130 CroMoly steel, main triangle double-butted frame
TIG-welded, horizontal-slotted dropout with derailleur hanger, Surly Gnot-Boost spacing
Tire clearance for 29 x 3" with fenders
Norwegian Cheese Brown
Front Axle Type
Large, Medium, QR x 100mm, X-Large
Rear Axle Type
QR x 142mm, QR x 148mm
600, 620, 640
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