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 Riprock Coaster 12 Kids Bike 2018
Get the little ones riding with the Specialized Riprock Coaster 12 Kids Bike. The bike uses an A1 Premium Aluminium frame and pairs it with kid's specific Specialized components, including a Kids saddle and handlebars.
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.
It is easy to think the child will grow into the bike but a bike too big will be dangerous, difficult to handle and less enjoyable to ride. What type of bike is the next decision.
For the child who's mastered balancing and is slightly older, a 12 or 14-inch bike is a nice option. This usually suits children ranging from 0.70 metres to 0.95 metres in height and means the child can get to grips with braking, changing gear and pedalling.
Features
- The premium A1 aluminium frame is lightweight and built to withstand the tough use by kids, while the geometry features an ultra-low standover that makes it easy for your little ones to fit on and grow with the bike.
- 12x2.3" Specialized Rhythm Lite tyres deliver tonnes of traction, comfort, stability, and fun over all types of terrain.
- A steel coaster brake is a reliable, easy to use brake perfect for safe stops.
Technical Specification
| FRAME | Specialized A1 Premium Aluminium |
| FORK | HiTen, 1" threaded steerer |
| HEADSET | Specialized |
| STEM | Quill, alloy, 22.2mm clamp |
| HANDLEBARS | Specialized Kids', steel, 10-degree backsweep, 4-degree upsweep, 55mm rise, 22.2mm |
| GRIPS | Specialized, dual coloured |
| FRONT BRAKE | V-brake, alloy, linear pull |
| REAR BRAKE | Coaster brake |
| CHAIN | KMC Z510, single-speed, anti-drop, 1/2"x1/8" |
| CRANKSET | Hi-Ten steel |
| CHAINRINGS | 36T |
| CASSETTE | 16T |
| BOTTOM BRACKET | Steel, loose ball bearings |
| PEDALS | Nylon platform with reflectors |
| FRONT HUB | Axis Elite Deep |
| REAR HUB | Axis Elite Deep |
| SPOKES | Stainless, 14g |
| RIMS | 12", aluminium, single wall, 16H |
| FRONT TYRE | Specialized Rhythm Lite, 12x2.3", 30TPI, wire bead, directional tread, clincher |
| REAR TYRE | Specialized Rhythm Lite, 12x2.3", 30TPI, wire bead, directional tread, clincher |
| SADDLE | Specialized Kids' |
| SEATPOST | Alloy, 25.4mm |
| SEAT BINDER | Alloy, 28.6mm |
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.
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