FREE with every bike! Bicycle Network Membership, First Service and more.
Size Guide
Click & Collect Customers: Your chosen store will phone you within 24 hours to confirm a collection date based on location of stock and your chosen store.
In a rush?
Choose Express Pickup at checkout. More.
The Reid Viper is a lightweight all-rounder kids bike, made for confidence inspiring control when tearing around the neighbourhood! Sized for riders 120-135cm (7-9 years of age).
A Kids Bike Built tough to deliver huge fun for little riders - with the quality, safety and value that parents love to see.
Reid knows kids are unforgiving on bikes, so we use quality alloy parts designed to withstand years of tough love. These are not your average kid’s bikes.
This kids 20 inch bike features a quality build with trusted components which means a added safety and a more enjoyable ride. These kids bikes are the real deal - with quality adjustable alloy components that can grow with young riders.
The Viper 20" is a kids 20 inch bike that is built around a hydroformed alloy frame that is safe and easy to control. Alloy makes this children's bike frame lightweight and durable. Quality Tekro V Brakes make stopping on a dime easy, and will give your child the confidence they need.
Key Features:
- Suitable kids bike for both boys and girls aged 7-9 years old
- Lightweight, hydroformed alloy bike frame that is safe and easy to control
- Simple to use Shimano 7-speed Tourney gearing
- Confidence inspiring contact points (handlebars, grips, saddle and pedals) that have been dialled to suit young riders
- Quality alloy parts and sealed bearing bottom bracket to withstand years of use and abuse
| Frame | 6061 aluminium alloy |
| Forks | Alloy |
| Wheelset / Rim | Reid double wall alloy |
| Brakes | Tektro v-brake |
| Tyres | Innova 20 x 1.75″ |
| Hubs | Reid alloy bolt on |
| Freewheel / Cassette | Shimano 7-speed freewheel (14-28t) |
| Rear Derailleur | Shimano tourney tx |
| Handlebars | Reid alloy flat bar |
| Stem | Zoom ahead 1 1/8 alloy |
| Shifters | Shimano revo shifter |
| Bottom Bracket | Vp sealed bearing |
| Brake Lever | Tektro kids specific |
| Pedals | Reid pvc platform |
| Chain | Kmc z50 |
| Grips | Reid ergonomic rubber |
| Saddle | Reid junior mtb |
| Seatpost | Reid alloy 27.2 mm micro adjust |
| Chainset | Alloy crankset single chainring 42t |
| Kickstand | Not included |
| Bell | Yes |
| 12" (Balance) | 16" | 20" | 24" |
| CM | FEET | |
| 12" (BALANCE) | 80cm - 100cmcm | 2'6" - 3'1" |
| 16" | 100cm - 120 cmcm | 3'4" - 4'0" |
| 20" | 120cm - 135cmcm | 4'0" - 4'5" |
| 24" | 135cm - 145cmcm | 4'5" - 4'9" |
This series of how-to video guides will take you through each step of assembling and tuning your new Bike. Watch the series or choose the tasks you need help with:
Assembly instructions guide
If you prefer to work from step-by-step diagrams, you can use this Assembly Instruction Guide for key points on all basic areas of bike assembly.
Need more assistance?
Please contact Customer Service for friendly expert advice to help you get your bike ready to ride. We welcome your questions as they will help us to improve the instructions we provide in future.
Our Viper 20" Kids Bike Blue includes the industry-leading Reid Warranty: lifetime on frame and rigid forks, 2 years on non-consumable parts and a free first service to get you going. Test ride in-store or shop online to enjoy a 30 Day Test Ride to guarantee you get a great deal.
Click and Collect
Buy online and collect in-store from our Melbourne, Brisbane or Perth stores fully assembled by our bike mechanics and ready to ride.
Be advised that your chosen store will phone you within 24 hours of ordering to confirm a collection date based on your availability, the location of stock and your chosen collection store.
Home Delivery
Our bikes are shipped in a box 85% assembled and require basic assembly, like turning handlebars and inserting pedals. Check out our Assembly Videos that give instructions on how to do this.
Buy One, Plant One
Since January 2020 we have partnered with Eden Reforestation Projects to donate enough money to pay a local person a fair wage to grow, plant and guard to maturity 1 native tree for every bike we sell.
We've now planted more than 200,000 trees and counting.
- Choosing a selection results in a full page refresh.
- Opens in a new window.