Diamondback Jr. Venom SS 20" Boys' Bike
This product is not available.
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.
- 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' |
| 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.
Review this Product
Adding a review will require a valid email for verification
Customer Images
A great mid level bike for young riders.
Just purchased for my son. It's not as quality as the specialized he'd outgrown but it was almost half the price. So far he's really pleased and that's all I care about. It's a very bright yellow that really draws the eye which is great for safety.
Nice Bike
I bought this bike for my 6 year old son. It is a nice bike, although a bit on the heavy side and it does not come with a kickstand. You'll have to get your own or have store techs install one at a cost.
Great affordable bike
Bought this bike for my 8 year old who is not a strong rider. This bike has helped him with the larger size. I also like that he has foot brakes and a back hand brake only.
Worth Every Penny
Purchased as a move-up bike for my 5-year old son who had outgrown his 16" bike. The Jr. Venom is still a bit big for him, but he'll grow into it quickly. The Jr. Venom is heavier than you'd expect, but that also means it will be more durable - important for a little boy that has a penchant for testing the longevity of his belongings.
Decent
Bought this for our 7 year old. He has had this bike for over a year now. He is taller then other kids so the bike is starting to get small for him. He really likes the bike. The tires seem wider then normal which is nice for off-road stability. The hand break is nice as it introduces him to more components that advanced mountain bikes will have. The bike is fairly heavy, which is okay in my opinion. The frame is steel. I think having a heavier bike is good training as he has gotten a lot stronger since he has had this bike. I grew up with a steel bike and it’s good for strength training. He had his first 3 mile mountain bike race this summer. All the other kids had super nice aluminum bikes with suspension and gears. My son got first place with this bike!! He really loved the race. So this year we will get him a more advanced bike. But he has really enjoyed this bike and we have been happy with it with no problems. Would definitely buy again. Compliments to the staff at REI because the bike came in a day before his birthday and wasn’t supposed to be built for a couple days, but the staff put his bike in front and built it so he could have it for his birthday!! Thank you!