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2018 Surly

ECR 27+

A steel frame gravel bike with upper mid-range components and avid mechanical disc brakes.
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FrameSteel
SuspensionRigid
ForkSteel
Wheels27.5″ / 29″ Aluminum
Drivetrain2 × 10
GroupsetSLX, Deore
BrakesAvid Mechanical Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Rider Position
relaxedaggressive
Terrain
smoothrugged
ECR 27+
Other Gravel bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

31 mph

ECR 27+

36 mph

Similar Bikes

Highest gear

(descending)

Sizing
XS

4'11" – 5'5"

SM

5'2" – 5'8"

MD

5'5" – 5'11"

🐐 Estimated

Rider Fit Notes

None yet.

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Reviews
BIKEPACKING.com
Joel Caldwell and his Surly ECR in Ethiopia

Apr 2019 · Logan Watts

After losing his left leg, a positive outlook, perseverance, and training got Joel Caldwell back on the bike for our recent ride through Ethiopia…

Read Review

Singletrack World
Review: Surly you can't have fun without suspension? We test the fully rigid ECR

Dec 2018 · Chipps

 Surly has always been individual and self-confident in its outlook. From pioneering the first production singlespeed (the 1×1, which pre-dated even Kona’s Unit and the On One Inbred) to...

Read Review

Geometry
Specs
Build
Frame

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

BB StandardBSA, 73mm, Threaded

Tire Clearance3"

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

TypeRigid

Groupset
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

TypeAvid Mechanical Disc

Brake Levers

Avid FR-5, Black

Wheels
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 27.5x3.0", 33TPI

Rider Notes
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First added March 14

Last updated March 14

Not listed for 2,998 days