Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Diamondback
2020 Diamondback El Oso NiÑo 20"
Previous used estimate
$217 - $223
Actual value depends on condition, size, and local demand.
Value Guide market data · 2020 Diamondback El Oso NiÑo 20"
12-month projected trend
10%
Direction and magnitude, not judgment
vs. category average
7%
Drops faster than category avg
Price over time - 2020 Diamondback El Oso NiÑo 20"
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All El Oso model years
Compare El Oso NiÑo 20" models
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Overview
About this bike
For sand, snow, and moon rocks. El Oso NiÑo is our smallest fat bike, made for kids who want to monster-truck over everything in their path. Four-inch wide tires sit atop 20-inch wheels, making for a unique style and ride. Low tire pressure allows the bike to grab every bit of traction available, with extra float for soft surfaces and sand. This little bear’s frame and fork are made from high-tensile steel, tough enough for prowling the neighborhood and the woods. It’s got a seven-speed Shimano grip shifter to charge up hills, and powerful disc brakes for control, allowing riders to go wherever the trail or their imagination takes them — maybe even to the moon! This model fits riders 44"-54" tall, aged approximately 4-9 years old.
Specifications
- Subtype
- Fatbike
- Category
- Mountain
- Component Fork
- 20" Hi-Ten Steel Junior Rigid, w/ Disc Tabs
- Component Hubs
- Front: Steel 32h Disc, 3/8" Nutted, 135mm OLD Rear: Steel 32h Disc, Freewheel, 3/8" Nutted, 180mm OLD
- Component Size
- 20-inch
- Component Stem
- Promax 90mm
- Product Family
- El Oso
- Component Chain
- KMC 7 Speed
- Component Color
- Green
- Component Frame
- 20" Hi-Ten Steel Junior Fat Bike, for Disc Brake Only
- Component Tires
- Chaoyang 20 x 4.0"
- Component Pedals
- 9/16" Resin
- Component Saddle
- Padded Jr. Diamondback
- Component Headset
- Threadless
- Component Crankset
- 152mm Steel w/ 40T Single Ring
- Component Shifters
- Shimano Tourney RS35 Grip Shift, 7 Speed
- Component Seat Post
- Steel 27.2mm
- Component Handlebars
- Alloy, 560mm Wide, 22.2mm Bar Bore
- Component Tape Grips
- DB Kraton
- Component Brake Levers
- Alloy Lever
- Component Bottom Bracket
- Square Taper - 5pc
- Component Rear Derailleur
- Shimano Tourney FT35, 7 Speed
- Component Accessories Extras
- Tool Kit
- Component Cassette Rear Cogs
- Shimano Tourney TZ21 7 Speed Freewheel,14-28T
- Hubs
- Front: Steel 32h Disc, 3/8" Nutted, 135mm OLD Rear: Steel 32h Disc, Freewheel, 3/8" Nutted, 180mm OLD
- Tires
- Chaoyang 20 x 4.0"
- Crankset
- 152mm Steel w/ 40T Single Ring
- Pedals
- 9/16" Resin
- Bottom Bracket
- Square Taper - 5pc
- Chain
- KMC 7 Speed
- Saddle
- Padded Jr. Diamondback
- Headset
- Threadless
- Rear Derailleur
- Shimano Tourney FT35, 7 Speed
- Stem
- Promax 90mm
- Accessories & Extras
- Tool Kit
- Brake Levers
- Alloy Lever
- Fork
- 20" Hi-Ten Steel Junior Rigid, w/ Disc Tabs
- Frame
- 20" Hi-Ten Steel Junior Fat Bike, for Disc Brake Only
- Handlebars
- Alloy, 560mm Wide, 22.2mm Bar Bore
- Seat Post
- Steel 27.2mm
- Shifters
- Shimano Tourney RS35 Grip Shift, 7 Speed
- Tape/Grips
- DB Kraton
- Color
- Green
- Size
- 20-inch
- Cassette/Rear Cogs
- Shimano Tourney TZ21 7 Speed Freewheel,14-28T
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.