Why buy your bike from Sigma Sports?
Don't hesitate to reach out to us. It's our goal to answer all of your questions and offer the best advice from our experts. We’ll be happy to answer any questions you may have. Contact us now or visit us in-store.
Save up to 47% with any one of our 11 Cycle to Work partners, and get the health benefits of a new bike in exchange for tax free salary sacrifice. To find out more about our various partners and how to apply click here.
Choose between Free Bike Delivery - to your home or place of work - or our new Premier Bike Delivery Service £99.99 and have your bike delivered "ready to ride" and set up to your measurements with seatpost and pedals adjusted on arrival by a qualified bike mechanic. Either way, our Customer Care team will be in touch to arrange a delivery date to suit you.
We've partnered with Laka to offer you 30 days free bike Insurance on your new bike purchase over £400. Click here for more info and find out how to claim.
Specialized Hotrock 24 21-Speed Boys Kids Bike 2017
The Specialized Hotrock 24 21-Speed Boys Kids Bike 2017 is the answer to getting your kids out riding. Its wide gear range is ideal for taking on more testing terrain as they grow accustomed to the bike, and the tough, durable components are perfect for taking on big bumps and knocks.
A coil-sprung SR Suntour fork with 50mm of travel means you go can out on day-long adventures without worrying about rough terrain, whilst the 24 x 2.125” tyres offer great grip and traction.
Features
- Tough, light, and durable, the A1 Premium Aluminum frame is built to stand up to years of tough riding
- SR Suntour suspension fork offers 50mm of coil-sprung travel that smooths out bumpy, rough terrain
Please note:
When choosing a kids bike there are a number of variables to consider. From a size point of view kids bike sizing is based on wheel size. You want your child to be in control and be able to enjoy the bike to its full potential, so a correctly sized bike is a must.
For the child between the ages of 9 to 11 and between 1.20 metres to 1.35 metres tall a 24 inch diameter wheel is the perfect choice. This again is faster than smaller wheeled bikes and this size of bike now starts to resemble a small adults bike, with many of the same components and features.
Image shown for representation of colourway only, specification subject to change at any time. Bicycles do not come with pedals unless otherwise specified.
Technical Specification
FRAME | Specialized A1 Premium Aluminium, formed top tube/down tube, forged dropouts, replaceable alloy derailleur hanger |
FORK | SR Suntour, coil spring w/preload adjust, 50mm of travel, 1-1/8" steel steerer, 9mm axle |
STEM | Forged alloy, 20-degree rise, 4-bolt, 25.4mm clamp diameter |
HANDLEBARS | Specialized, alloy, 6-degree backsweep, 600mm width, 25.4mm |
FRONT BRAKE | V-brake, alloy, linear pull |
REAR BRAKE | V-brake, alloy, linear pull |
BRAKE LEVERS | Shimano Tourney, Revo-style, 7-speed |
FRONT DERAILLEUR | Shimano Tourney, top swing, 31.8mm band clamp |
REAR DERAILLEUR | Shimano Tourney, 7-speed |
SHIFT LEVERS | Shimano Tourney, Revo-style, 7-speed |
CASSETTE | Shimano, 7-speed, 14-28t |
CRANKSET | Forged alloy arms w/chainguard |
FRONT WHEEL | 24", alloy single wall, pin joint, 32h |
REAR WHEEL | 24", alloy single wall, pin joint, 32h |
FRONT TYRE | Specialized Roller, 24x2.125", 30TPI, wire bead, clincher |
REAR TYRE | Specialized Roller, 24x2.125", 30TPI, wire bead, clincher |
SADDLE | Specialized Kids', 7mm rails w/bumper |
SEATPOST | Alloy, single bolt, 27.2mm |
Built, Checked, Tuned and Tested
All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if included), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.
All bikes collected from our shop, are built, tested and ready to ride. For hassle-free home delivery and bike set-up from a qualified mechanic use our Premier Delivery Service.
Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. Bikes ordered for delivery will not arrive with the pedals installed, please refer to the owners manual and pedal installation guides provided for guidance. We do not install accessories to bikes, including mudguards. Bikes ordered for delivery that have tubeless compatible tyres and rims will arrive with inner tubes installed or with tubeless valves installed, this will be brand dependent. Sealant is available to be purchased separately.
If you require any assistance please contact our Customer Care team.
Unable to display Reviews due to Privacy Settings.
Adjust your Cookie Preferences to Opt-in "YES" to "Functional Cookies".
Unable to display Q&A due to Privacy Settings.
Adjust your Cookie Preferences to Opt-in "YES" to "Functional Cookies".