Diamondback Jr. Venom SS 20" Boys' Bike
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A classic BMX bike in its purest form, the Diamondback Jr. Venom SS is a great first-time BMX bike for tearing up and down the sidewalk and showing up all the other kids on the block.
Shop similar products- Heavy-duty steel frame and fork provide stability and durability
- Rush alloy linear-pull brakes and coaster brakes are easy and safe for kids to operate
- Single-speed drivetrain is simple and reliable
- Moto-inspired handlebar and rear fender
- Junior padded seat for cushion and comfort
- Alloy 36-hole rims
- NOTE: Specs and images are subject to change based on component availability
Imported.
This bike comes with Coast to Coast Support, which includes:
New bikes go through a normal break-in period, after which they should be readjusted. All bicycles sold at REI include free adjustments for one year after purchase date—as many times as you need. Included: derailleur and brake adjustments, lateral wheel truing, hub and headset bearing adjustments, tire inflation and chain lubrication. Not included: replacement or installation of new components or accessories, any other services. Call your local REI Co-op Bike Shop for more information.
View all Diamondback- 1 year of free adjustments (see more below)
- In-store bike assembly
- Pickup in store or curbside
- Bike experts available at 170+ bike shops
- 20% off shop services
- Free tubes with purchase of flat tire repair (Co-op Cycles brand tubes only; tube must be installed at time of purchase)
New bikes go through a normal break-in period, after which they should be readjusted. All bicycles sold at REI include free adjustments for one year after purchase date—as many times as you need. Included: derailleur and brake adjustments, lateral wheel truing, hub and headset bearing adjustments, tire inflation and chain lubrication. Not included: replacement or installation of new components or accessories, any other services. Call your local REI Co-op Bike Shop for more information.
| Best Use | Cycling |
|---|---|
| Frame | Hi-ten steel with fender mount |
| Bike Suspension | No Suspension |
| Fork | Hi-ten steel |
| Crankset | 140mm steel 1-piece with 36t single ring |
| Bottom Bracket | Loose ball |
| Rear Cogs | 18t Coaster |
| Number of Gears | 1 |
| Brake Type | Coaster |
| Brakes | Coaster |
| Rims | 36h single-wall alloy |
| Front Hub | 36h steel nutted; 3/8" axle |
| Rear Hub | 36h steel nutted |
| Wheel Size | 20 inches |
| Tires | MTB 20 x 2.125" |
| Handlebar Shape | Flat Bar |
| Handlebar | Hi-ten steel Jr. Riser |
| Stem | Alloy Ahead, 25.4mm bar bore |
| Seat Post | Steel pillar, 25.4mm |
| Saddle | Diamondback BMX padded |
| Pedals | Resin platform |
| Headset | Threadless 1-1/8" |
| Chain | KMC Z410, single-speed |
| Weight | 33 lbs. 5 oz. |
| Bike Weight | Bike weight is based on median size, as sold, or the average of two median sizes. |
| Gender | Boys' |
Diamondback Bikes (109008)
| 20 in | |
|---|---|
| Height Range | 44" - 52" |
| Reach | 385 |
| Stack | 363 |
| Effective Top Tube | 518 |
| Seat Tube Center-Top | 235 |
| Standover Height | 524 |
| Head Tube Length | 100 |
| Head Tube Angle (degrees) | 74 |
| Seat Tube Angle (degrees) | 70 |
| Bottom Bracket Height | 239 |
| Wheelbase | 887 |
| Chainstay | 355 |
| Fork Offset | 32 |
Sizing Notes
Bike measurements are stated in millimeters.
How we measure bikes
- Standover Height Standover Height is a measurement from the ground to the top of the top tube, measured at the midpoint of the top tube.
- Reach Reach is the horizontal distance from the center of the cranks to the center of the head tube, measured at head tube level.
- Stack Stack is the vertical distance from the center of the cranks to the center of the head tube, measured to the top of the head tube.
- Effective Top Tube Effective top tube is the distance from the center of the head tube to the center of the seat tube/seat post, measured parallel to the ground.
- Seat Tube Center to Top Seat Tube length is the measurement of the seat tube, from the center of the cranks to the top of the seat tube.
- Head Tube Length Head Tube Length is measured from the bottom to the top of the head tube.
- Head Tube Angle Head Tube Angle is the acute angle between the head tube and the ground (measured towards the rear of the bike)
- Seat Tube Angle Seat Tube Angle is the acute angle between the seat tube and the ground (measured towards the rear of the bike).
- Bottom Bracket Height Bottom Bracket Height is a measurement taken vertically from the ground up to the center of the cranks.
- Wheelbase Wheelbase is the measurement from the center of the front axle to the center of the rear axle.
- Chainstay Length Chainstay Length is the measurement from the center of the cranks to the center of the rear axle.
- Fork Offset Fork Offset, or rake, is the distance from the front axle to a line drawn parallel to the center of the head tube or steering axis.