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The Ridgeback Dimension 20 is a lightweight, premium bike designed for confident young riders aged 6 to 9 who want a smooth, easy-to-handle ride. With a strong aluminum frame and high-quality parts, the Dimension 20 helps kids explore new trails and master new skills with ease.
Why Parents Love It
- Lightweight and Durable: The 6061 aluminum frame keeps the bike light for easy control, while still tough enough to handle everyday adventures.
- Reliable Braking: Powerful alloy V-brakes provide confident stopping power that's easy for small hands to operate.
- Comfort and Fit: Child-specific geometry, adjustable saddle, and handlebars ensure a comfortable and secure ride.
- Ready for Adventure: Fast-rolling 20-inch alloy wheels with multi-surface tyres let kids ride confidently on roads, trails, and playgrounds alike.
Designed for Growing Explorers
With 20-inch wheels and carefully tuned geometry, the Ridgeback Dimension 20 fits children approximately 120–135cm tall. It's the perfect step up for riders who are ready to take on longer rides and new challenges.
Key Features
- Lightweight 6061 heat-treated aluminum frame and fork
- 20-inch alloy wheels with versatile, grippy tyres
- Responsive alloy V-brakes designed for kids' hands
- Adjustable saddle and handlebars for growing riders
The Ridgeback Dimension 20 combines premium materials with thoughtful design to give kids a bike that's light, durable, and ready for fun adventures. It's built to inspire confidence and keep young riders excited to get outside and ride.
Ridgeback Dimension 20
SKU
VARRB2287
Ridgeback has been making bikes for all kinds of riders since 1983, and understands what an important part bikes play in the lives of many, many people in the UK. From flat bar mountain and touring bikes to comfortable commuters and children’s bikes all the way to E-Bikes, Ridgeback leads the way in making practical and fun bikes designed to fit in with your lifestyle.
From the UK’s first MTB in 1983, through the Roxy, the introduction of the Urban series in 1998, the Genesis Day 03 flat bar road bike in 2001, the Dual Track 29er and the 25th anniversary R25, Ridgeback Bikes have been helping people get out and about for 40 years now.
For the modern Ridgeback range, E-Bikes are absolutely the present and the future. Cycling isn’t always about fun or fitness, sometimes (or even most of the time) it’s an incredibly powerful tool for just getting around without using a car. For that type of urban mobility, E-Bikes are the perfect solution which is why the Ridgeback range contains multiple different models at different price points so that you have a choice no matter where you are or where you need to get to.
But that’s not to say that Ridgeback has ignored the non-E-Bike, not at all. The range still has classic, powered bikes from £400 all the way up to £1,199.99, making sure there is a choice for every rider, no matter their budget. The other fundamental is to make bikes that complement lifestyle, not hinder it. That means every Ridgeback uses quality parts to make sure that they keep going for longer and wont let you down when you need them most.
The other fundamental part of Ridgeback bikes is the kids bikes. It starts with the Scoot and Scoot XL balance bikes that are designed to teach kids the fundamentals of bike riding without throwing pedalling into the mix and goes all the way up to the almost-adult-sized Dimension 26, Ridgeback’s kids bikes are proper bikes, not toys. That means they’re made to withstand the beating that kids can inflict and come back ready for more, they wont need a trip to the bike shop every 5mins because that’s doesn’t benefit anyone.
Bottom Bracket :
Samox BB-Alloy 68/118mm
Brake Levers :
Tektro TX-316AG
Brakes :
Promax TX-107C V-Brake
Cassette Freewheel :
Shimano CS-HG200-7 12-28T
Chain :
KMC Z7
Chain Set :
Samox SAC-30D / 32T / 114 mm
Grip Tape :
Ridgeback
Headset :
Ridgeback Alloy 1 1/8
Pedals :
Resin Junior
Rear Derailleur :
Shimano Tourney RD-FT35A
Rims :
Rigida 20 / 32h""
Saddle :
Ridgeback
Seat Post :
Alloy 27.2 x 250 mm
Shifters :
Shimano SLM310 Rapid Fire 7 Speed
Spokes :
Steel 14 g
Stem :
Alloy / 40mm 1 1/8 / 31.8mm Barbore""
Tyres :
Vee Speedster 20 x 2.0
Wheel Size :
20 inch
Fork :
6061 Heat Treated Aluminium
Fork Material :
Alloy
Frame Material :
Alloy
Specification Disclaimer :
Ridgeback reserves the right to change product specifications without notice. Ridgeback will always ensure that these changes do not detract from the ride experience of the bike.
Brake Type :
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ONE SIZE - 120 to 140
| Frame Size | ONE SIZE | ONE SIZE | ONE SIZE |
|---|---|---|---|
| Stem Length plus Reach | |||
| Frame Seat Tube | |||
| Frame Top Tube | |||
| Frame Reach | |||
| Frame Stack | |||
| Frame Head Tube | |||
| Frame Head Angle | |||
| Frame Seat Angle | |||
| Frame Chainstay | |||
| Frame BB Drop | |||
| Frame Wheel Base | |||
| Fork Offset | |||
| Fork Travel | |||
| Standover | |||
| Stem Length | 40 | 40 | 40 |
| Handle Bar Width | 520 | 520 | 520 |
| Frame Size | ONE SIZE | ONE SIZE | ONE SIZE |
|---|---|---|---|
| Stem Length plus Reach | |||
| Frame Seat Tube | |||
| Frame Top Tube | |||
| Frame Reach | |||
| Frame Stack | |||
| Frame Head Tube | |||
| Frame Head Angle | |||
| Frame Seat Angle | |||
| Frame Chainstay | |||
| Frame BB Drop | |||
| Frame Wheel Base | |||
| Fork Offset | |||
| Fork Travel | |||
| Standover | |||
| Stem Length | 40 | 40 | 40 |
| Handle Bar Width | 520 | 520 | 520 |