El Oso Nino 20
El Oso Nino 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”-55” tall, aged approximately 4-9 years old.
- Frame 20" Hi-Ten Steel Junior Fat Bike, for Disc Brake Only
- Fork 20" Hi-Ten Steel Junior Rigid, w/ Disc Tabs
- Headset Threadless
- Cranks 152mm Steel w/ 40T Single Ring
- Bottom Bracket Square Taper - 5pc
- Rear Derailleur Shimano Tourney FT35, 7 Speed
- Shifter Shimano Tourney RS35 Grip Shift, 7 Speed
- Cogset Shimano Tourney TZ21 7 Speed Freewheel,14-28T
- Chain KMC 7 Speed
- Front Hub Steel 32h Disc, 3/8" Nutted, 135mm OLD
- Rear Hub Steel 32h Disc, Freewheel, 3/8" Nutted, 180mm OLD
- Spokes 14g Steel
- Rims 32h Jr Fatty Alloy
- Tires Chaoyang 20x4.0"
- Brake Levers Alloy Lever
- Pedals 9/16" Resin
- Handlebar Alloy, 560mm Wide, 22.2mm Bar Bore
- Grips DB Kraton
- Stem Promax 90mm
- Seat Padded Jr. Diamondback
- Seatpost Steel 27.2mm
- Extras Tool Kit
- Brakes Apex Mechanical Disc, w/ 160mm Front /160mm Rear Rotor
- Product ID 4739
* Specifications are subject to change without notice
Frame Size | 20" 44"-55" |
---|---|
Rider Height | - |
Bike Stand Over Height | 576.0 mm |
Bike Seat Tube Length | 272.0 mm |
Bike Top Tube Length | 508.0 mm |
Bike Head Tube Length | 115.0 mm |
Bike Head Angle | 71.0 ° |
Bike Seat Angle | 70.0 ° |
Bike Wheel Base | 927.0 mm |
Bike Chain Stay Length | 380.0 mm |
Bike Fork Offset | 45.0 mm |
Bike Bb Height | 240.0 mm |
Bike Bb Drop | 11.0 mm |
Bike Stem Length | 90.0 mm |
Bike Handlebar Width | 560.0 mm |
Bike Crank Length | 152.0 mm |
Bike Seat Post Length | 260.0 mm |
Bike Stack | 445.0 mm |
Bike Reach | 345.0 mm |
Bike Fork Length | 358.0 mm |

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