Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Diamondback
2020 Diamondback Mason 1
Value Guide market data · 2020 Diamondback Mason 1
12-month trend
9%
Direction and magnitude, not judgment
vs. category average
— %
No category comparison available
Price over time - 2020 Diamondback Mason 1
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Mason model years
2020 Mason 1 lineup
Overview
About this bike
2020 Diamondback Mason 1 value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Drivetrain
- Groupset
- 2020 Diamondback Mason 1
- Shifters
- Shimano Deore M6000, 10 Speed
Brakes
- Brake Levers
- Tektro 2 Finger Alloy Linear w/ Reach Adjust
- Brakes
- Tektro Aries Mechanical Disc, w/ 180mm Front / 160mm Rear Rotors
Cockpit
- Handlebars
- DB35 Alloy, 760mm Wide, 15mm Rise, 35mm Bar Bore
- Seat Post
- DB Alloy Micro Adjust, 30.9mm
- Tape/Grips
- DB "Flanged" 135mm Silcone
Wheels & Tires
- Hubs
- Front: 32h Alloy, Boost 110x15mm, w/ CNC Disc Mount<br>Rear: 32h Alloy, 10mm QR, Cassette w/ CNC Disc Mount, 141mm
- Tires
- Vee Rubber Bulldozer, 27.5x3.0 Tires
- Axles
- Front: 110 x 15mm<br>Rear: 148 x 12mm
Pedals
- Pedals
- DB4L Alloy w/ Molded Traction Pins
Accessories
- Accessories & Extras
- Tool Kit
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.