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Ridgeback Dimension 20" Kids Bike
- Triple-butted alloy frame
- Shimano Tourney 7-speed drivetrain
- Promax TX-107C alloy V-brakes
The Ridgeback Dimension 20" Kids Bike is a lightweight, durable bike built to give young riders aged 6 to 9 a smooth, controlled ride. Its 6061 heat-treated aluminium frame keeps weight low while maintaining strength for everyday use. This makes the bike easier for children to handle, steer, and control. With stable 20-inch wheels, reliable V-brakes, and simple 7-speed gearing, it gives growing riders the tools they need to ride further and build confidence on every journey.
Key Features and Benefits:
- 6061 heat-treated aluminium frame: This lightweight but strong frame reduces the overall bike weight while maintaining structural durability. The lower weight makes it easier for young riders to control the bike, lift it when needed, and maintain balance, which leads to greater confidence and smoother riding progression.
- 20-inch alloy wheels with Vee Speedster 2.0 tyres: Strong alloy rims paired with wide multi-surface tyres provide reliable grip and stability. The larger air volume helps absorb small bumps while maintaining fast rolling speed, allowing children to ride comfortably on pavements, paths, and playground surfaces.
- Promax TX-107C alloy V-brakes with Tektro brake levers: These responsive braking components deliver consistent stopping power while remaining easy for smaller hands to operate. This ensures young riders can control their speed safely, helping them develop proper braking technique and confidence in different riding situations.
- Shimano Tourney 7-speed drivetrain with Rapidfire shifter: The Shimano Tourney rear derailleur and Rapidfire trigger shifter offer simple, reliable gear changes. This allows children to adjust pedalling effort easily when riding uphill or on longer rides, helping them maintain steady momentum and ride for longer distances.
- Child-specific geometry with adjustable cockpit: The frame design, combined with adjustable saddle height and handlebar position, creates a riding position suited to younger riders. This supports good balance and comfort, which helps reduce fatigue and improves control during longer rides.
- Quality junior components throughout: Durable parts such as the Samox crankset, KMC Z7 chain, and Rigida alloy rims are designed to handle regular use. This reliable component setup ensures smooth operation and long-term durability, giving parents confidence the bike will perform consistently as children improve their skills.
A lightweight and well-balanced bike helps young riders develop control, confidence, and independence on two wheels. The Dimension 20 focuses on low weight, reliable shifting, and easy braking so children can manage the bike without unnecessary effort. The combination of quality components and stable geometry supports steady skill progression while keeping the ride smooth and predictable.
The Ridgeback Dimension 20 is designed to support young riders as they grow in confidence and ability. Its lightweight build, dependable components, and comfortable fit make it a strong choice for everyday riding, weekend adventures, and developing cycling skills.
Size Guide: Child Height - 120-140cm
| Frame | Alloy |
| Bottom Bracket | Samox BB-Alloy 68/118mm |
| Brake Levers | Tektro TX-316AG |
| Brakes | Promax TX-107C V-Brake |
| Cassette | Shimano CS-HG200-7 12-28T |
| Chain | KMC Z7 |
| Chain Set | Samox SAC-30D / 32T / 114 mm |
| Fork | 6061 Heat Treated Aluminium |
| Grip | Ridgeback |
| Headset | Ridgeback Alloy 1 1/8 |
| Pedals | Resin Junior |
| Rims | Rigida 20 / 32h" |
| Saddle | Ridgeback |
| Seat Post | Alloy 27.2 x 250 mm |
| Rear Derailleur | Shimano Tourney RD-FT35A |
| Shifters | Shimano SLM310 Rapid Fire 7 Speed |
| Spokes | Steel 14g |
| Stem | Alloy / 40mm 1 1/8" / 31.8mm Barbore |
| Tyres | Vee Speedster 20 x 2.0 |
| Wheel Size | 20 Inch |
| Colour | Red, Teal |
| Brand | Ridgeback |
| MPN(s) | RB22870, RB22871 |
Our Payment Options
Online we currently accept payment from the methods listed above including a wide range of finance options. In store we also accept payment in the form of cash and gift vouchers.
Finance Options
In order to get the kit you want, when you need it, we offer a highly flexible range of finance options to help you get the best products on your bike now rather than at the end of the season when you've saved up the cash to make the purchase. There are even interest free options which effectively spread the cost without costing you any extra.
D.T.(Automotives) Limited T/A Tweeks Cycles is authorised and regulated by the Financial Conduct Authority and is the broker and not the lender. Our FCA registration number is 689896. D.T.(Automotives) Limited offers credit products from Secure Trust Bank PLC trading as V12 Retail Finance, Klarna and Clearpay. Credit is provided subject to affordability, age and status. Minimum spend applies. Not all products offered by Secure Trust Bank PLC are regulated by the Financial Conduct Authority. Klarna is unregulated credit. Clearpay is unregulated credit, use responsibly, T&Cs & late fees apply.
Our Finance Providers
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D.T.(Automotives)Limited trading as Tweeks Cycles offer interest free and interest-bearing credit on purchases £300 and over which is provided by V12 Retail Finance.
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We also offer Klarna, pay now, pay in 30 days or pay in 3 equal instalments.
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We also offer Clearpay pay in 4 instalments.
* Bike Delivery Info
A bike has to go though a Pre Delivery Inspection (PDI Check) prior to despatch, ensuring the bike is thoroughly checked and set up prior to you receiving. This also means an express delivery service is unavailable. We strive to despatch bikes within 3-5 working days. Please note this may change over school holidays and the festive season (November/December). For more information on the process please visit our pre-build page.
For international shipping please visit our delivery page.
For information about returning an item please visit our returns page.