Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Surly
2018 Surly ECR 27.5
Value Guide market data · 2018 Surly ECR 27.5
12-month trend
6%
Direction and magnitude, not judgment
vs. category average
21%
Holds value better than category avg
Price over time - 2018 Surly ECR 27.5
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All ECR model years
2018 ECR 27.5 lineup
Overview
About this bike
2018 Surly ECR 27.5 value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Frameset
- Fork
- Surly ECR, TIG-welded custom-butted 4130 CroMoly, non-suspension corrected, 1-1/8-inch steerer tube, 203mm disc brake clearance
- Frame
- Surly ECR, 100% Surly 4130 CroMoly steel. ED coated. Double-butted main triangle. TIG-welded
Drivetrain
- Groupset
- Shimano SLX
- Bottom Bracket
- Surly Enduro
- Chain
- KMC X10, Silver
- Chainrings
- 39/26
- Crankset
- Surly O.D.
- Front Derailleur
- Shimano SLX FD-M661, Problem Solvers direct mount adaptor (31.8mm w/shim)
- Rear Derailleur
- Shimano Deore RD-M615 SGS, 10-speed
- Shifters
- Microshift SL-M10
Brakes
- Brake Levers
- Avid FR-5
- Brakes
- Avid BB7, Centerline 180/160mm front/rear rotors
Cockpit
- Handlebar
- Surly Moloko, 31.8mm
- Headset
- Cane Creek, 40 series
- Saddle
- WTB Volt Sport
- Seatpost
- Kalloy SP-342
- Stem
- HL Satori
- Grips
- Velo lock-on
Wheels & Tires
- Axles
- Front: 9mm, bolt-on, Rear: 12x148mm thru-axle
- Hubs
- Front: Surly Ultra New Disc, Rear: Salsa
- Tires
- Surly Knard, 27.5 x 3.0, 33tpi
Frame sizing
XS4'10"-5'2"
S5'2"-5'6"
M5'6"-5'10"
L5'10"-6'2"
XL6'2"-6'6"
M highlighted as most common resale size. Sourced from catalog metadata.
Geometry
- Stack
- Varies by size
- Reach
- Varies by size
- Wheelbase
- Varies by size
Industry standard. Sourced from catalog metadata.
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Wheel condition
Inspect rims, hubs, spokes, and bearing play; ask about the tire age and any prior wheel rebuilds.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Suspension service
Confirm fork lowers and rear shock service intervals; ask for the most recent service receipts.
Inspection
Frame pivots & bearings
Cycle the suspension off the bike to feel for play, grit, or noise in pivot bearings.