Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Diamondback
2020 Diamondback Line 24"
Previous used estimate
$178 - $183
Actual value depends on condition, size, and local demand.
Value Guide market data · 2020 Diamondback Line 24"
12-month projected trend
10%
Direction and magnitude, not judgment
vs. category average
7%
Drops faster than category avg
Price over time - 2020 Diamondback Line 24"
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Line model years
Compare Line 24" models
1 modelsChoose a different build or frame style to see its value.
Overview
About this bike
A bike they can grow with, the Line 24" is a junior version of our do-anything hardtail mountain bike. Equipped to handle the abuse of real mountain bike trails and daily use around the neighborhood, it’s made from the same aluminum as our full-size bikes, so it’s practically indestructible. An SR Suntour fork performs like the big people’s bikes, giving your ripper-to-be 80mm of front suspension travel. The 24-inch wheels are stiff and stable, shod with aggressive 2.25-inch wide Vee Rubber tires: perfect for tearing up the woods. Disc brakes and a wide-range SRAM 1×8 drivetrain are real performance features, underscoring that the Line 24" is a legit mountain bike—only smaller. This model fits riders 53” – 62” tall, aged approximately 8 – 12 years old.
Specifications
- Subtype
- Cross Country
- Category
- Mountain
- Component Fork
- SR Suntour XCT JR 24", 80mm Travel, 28mm Stanchion, Alloy Lowers, w/ Preload Adjust
- Component Hubs
- Front: 32h Alloy w/ CNC Disc Mount Rear: 32h Alloy w/ CNC Disc Mount, Cassette
- Component Stem
- Diamondback "Shortie", 45mm Reach, 31.8 Bar Bore
- Product Family
- Line
- Component Chain
- KMC Z82, 8 Speed
- Component Color
- Matte Silver
- Component Frame
- 6061 T-6 Aluminum Jr-24" Frame, Formed Tubing, Disc Specific w/ Replacable Hanger
- Component Pedals
- DB4L Resin Platform
- Component Saddle
- DB Sync'r Jr. Saddle
- Component Headset
- FSA IS-3/NO.11 Integrated Style
- Component Cassette
- SRAM PG820 Cassette, 8 Speed, 11-32T
- Component Crankset
- Alloy Arm, w/ 32T Steel Single Ring, 155mm
- Component Shifters
- SRAM X4 8 Speed
- Component Handlebar
- Diamondback, 720mm Wide, 15mm Rise, 31.8 Bar Bore
- Component Seat Post
- Alloy Micro Adjust, 27.2mm
- Component Front Tire
- Vee Rubber Crown Gem, 24x2.25"
- Component Tape Grips
- New DB "Flanged" 135mm Silcone
- Component Brake Levers
- Tektro 2 Finger Alloy Linear w/ Reach Adjust
- Component Bottom Bracket
- Sealed Cartridge
- Component Rear Derailleur
- SRAM X3, 8 Speed
- Component Front Derailleur
- Upper Chain Guide, 34.9 Clamp Diameter
- Hubs
- Front: 32h Alloy w/ CNC Disc Mount Rear: 32h Alloy w/ CNC Disc Mount, Cassette
- Crankset
- Alloy Arm, w/ 32T Steel Single Ring, 155mm
- Pedals
- DB4L Resin Platform
- Bottom Bracket
- Sealed Cartridge
- Chain
- KMC Z82, 8 Speed
- Saddle
- DB Sync'r Jr. Saddle
- Handlebar
- Diamondback, 720mm Wide, 15mm Rise, 31.8 Bar Bore
- Headset
- FSA IS-3/NO.11 Integrated Style
- Front Derailleur
- Upper Chain Guide, 34.9 Clamp Diameter
- Rear Derailleur
- SRAM X3, 8 Speed
- Stem
- Diamondback "Shortie", 45mm Reach, 31.8 Bar Bore
- Brake Levers
- Tektro 2 Finger Alloy Linear w/ Reach Adjust
- Cassette
- SRAM PG820 Cassette, 8 Speed, 11-32T
- Fork
- SR Suntour XCT JR 24", 80mm Travel, 28mm Stanchion, Alloy Lowers, w/ Preload Adjust
- Frame
- 6061 T-6 Aluminum Jr-24" Frame, Formed Tubing, Disc Specific w/ Replacable Hanger
- Seat Post
- Alloy Micro Adjust, 27.2mm
- Shifters
- SRAM X4 8 Speed
- Tape/Grips
- New DB "Flanged" 135mm Silcone
- Color
- Matte Silver
- Front Tire
- Vee Rubber Crown Gem, 24x2.25"
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Suspension service
Confirm fork and rear shock service intervals and check pivot bearings for play.