73mm shell width, threaded standard English (1.37˝ x 24t)

Avid BB7, Centerline rotors. 180/160mm front & rear

Surly ECR, TIG-welded custom-butted 4130 CroMoly, non-suspension corrected, 1-1/8˝ steerer tube, 203mm disc brake clearance

Surly ECR, 100% Surly 4130 CroMoly steel. ED coated. Double-butted main triangle. TIG-welded

Shimano SLX FD-M661, Problem Solvers direct mount adaptor (31.8mm w/shim)

Surly Ultra New Disc, 32h. 6-bolt disc. Black

Sometimes the only way to break the humdrum of life is with a bike ride off the beaten path. Sometimes just for a quick overnighter, sometimes a month and half fully-loaded through nine countries. The ECR is our answer to those sometimes.
Those familiar with this steel mule know it’s designed around plus tires, previously of the 29” variety. A fully loaded 29+ bike is an excellent way to explore and get away for a while… if you’re of a certain stature that is. For smaller riders, it poses several challenges though. And no one wants new problems when they’re in the woods trying to escape old ones. To solve this, we redesigned the smaller sizes of the ECR to work with 27.5+ while the larger sizes are still equipped with 29+. All you medium specimens out there get your pick of the litter as we’re offering that size in both options. So way to just be average I guess.
Other updates to the ECR include and are limited to: Gnot-Boost rear spacing with our updated Troll dropout and a killer new beige paint job. It retains the abundant accessory mounts that we all know and love like Surly Trip Guide for brakes and derailleurs, fender, rack, and Bill/Ted eyelets, and a Rohloff torque arm slot. The 27.5+ sizes also feature two sets of Three-Pack bosses while the 29+ sizes have two water bottle mounts and one set of Three-Pack bosses. You’ve got a lot of options to bring all your “necessities” with you and still have room for excess baggage if you’ve got it. And sweet ground scores when you find them.
Get loaded and go with the ECR!

MSRP
Where to Buy	— $1 At
Category	Gravel
	3.1
Frame	Steel
	Steel
Wheels	Aluminum
Wheel Size	27.5″ / 29″
Clearance	3"
	Avid Mechanical Disc


	SLX, Deore
Drivetrain	2 × 10
Brand Site	surlybikes.com
Summary	The Surly ECR 29+ is a steel frame gravel bike with upper mid-range components and avid mechanical disc brakes.

Frame	Surly ECR, 100% Surly 4130 CroMoly steel. ED coated. Double-butted main triangle. TIG-welded BB Standard: BSA, 73mm, Threaded Tire Clearance: 3"
Fork	Surly ECR, TIG-welded custom-butted 4130 CroMoly, non-suspension corrected, 1-1/8˝ steerer tube, 203mm disc brake clearance
Bottom Bracket	73mm shell width, threaded standard English (1.37˝ x 24t)
Headset	Cane Creek, 40 series
Stem	HL Satori, 31.8, Black
Handlebar	Surly Moloko, Black
Saddle	WTB Volt Sport, Steel Rail
Seatpost	Kalloy SP-342 Type: Rigid

Rear Derailleur	Shimano Deore RD-M615 SGS, 10-speed
Front Derailleur	Shimano SLX FD-M661, Problem Solvers direct mount adaptor (31.8mm w/shim)
Crank	Surly O.D. 26/39t
Shifters	Microshift SL-M10, 10-speed
Cassette	SunRace, 10 speed, 11-40t
Chain	KMC X10, Silver
Brakes	Avid BB7, Centerline rotors. 180/160mm front & rear Type: Avid Mechanical Disc
Brake Levers	Avid FR-5, Black

Rims	Alex MD40
Front Hub	Surly Ultra New Disc, 32h. 6-bolt disc. Black
Rear Hub	Salsa 148mm, 12mm thru-axle, 32h
Tires	Surly Knard 29x3.0", 33tpi