Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Surly
2021 Surly Lowside
Value Guide market data · 2021 Surly Lowside
12-month trend
8%
Direction and magnitude, not judgment
vs. category average
1%
Drops faster than category avg
Price over time - 2021 Surly Lowside
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Lowside model years
2021 Lowside lineup
Overview
About this bike
2021 Surly Lowside value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Frameset
- Fork
- Surly Lowside Fork 4130 Chromoly, Natch tubing, double-butted tapered fork blades, TIG welded, ED coated
- Frame
- Surly Lowside Frame 4130 Chromoly, Natch tubing, double-butted main triangle, TIG welded, ED coated
Drivetrain
- Groupset
- Shimano Altus
- Bottom Bracket
- SRAM PS
- Cassette
- Surly 17T w/ spacer kit
- Chain
- KMC X10
- Chainrings
- 32T
- Crankset
- SRAM NX
Brakes
- Brake Levers
- Tektro
- Brakes
- Tektro Hydro M275/276, 160mm rotors
Cockpit
- Handlebar
- Surly Sunrise
- Headset
- Cane Creek
- Saddle
- WTB Volt
- Seatpost
- 2 Bolt, 30.9mm, 400mm
- Stem
- Sunday Freeze top load 22.2mm clamp
- Grips
- Velo Lock-on style
Wheels & Tires
- Axles
- Front: 110 x 15mm, Rear: Surly Gnot-Boost, 148 x 12mm
- Front Tire
- Surly Dirt Wizard 26x3.0 60tpi Tubeless Ready
- Hubs
- Novatec, 32h, Thru-Axle
- Rims
- Alex MD40
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.