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.
All our bikes are fully built by our Cytech qualified mechanics. To find out more, see the Built, Checked, Tuned and Tested section below to see how we'll deliver your bike.
We offer FREE DELIVERY of your bike to your home or place of work. Once you've placed your order, our Customer Care team will be in contact to offer a convenient delivery date of your choice.
We've partnered with PedalSure to offer you 30-DAYS FREE bike insurance on new bikes over £400. Visit our Cycle Insurance page to learn more and claim.
BMC Alpenchallenge Three Sora Hybrid Bike 2021
A versatile, hardy and agile character makes the BMC Alpenchallenge Three Sora Hybrid Bike an ideal choice if running urban errands, hurried commuting or social weekend rides are part of the regular routine.
The high-grade aluminium frameset is strong and resilient but is light and spritely for when flicking around street corners and trying to beat the traffic lights. The clean and stylish aesthetic of the frameset is joined by a race bike inspired geometry that grants a reactive and fast ride.
Lightweight alloy wheels accelerate sharply but are still robust enough to handle poorly maintained city roads and the Shimano Sora 9-speed gears change dependably amongst their wide range of ratios. Hydraulic disc brakes stop accurately in all weather conditions and concealed mounting points on the frame and fork means that mudguards can be easily and securely attached for when riding in the rain.
- A nimble, quick and versatile hybrid bike that has a stylish aesthetic
- The high-grade alloy frameset gives a reactive, nippy and sure-footed ride
- Racing bike inspired geometry grants a spritely character that’s ideal for rushing about town
- Light but robust wheels are fast but handle poor road surfaces with ease and are low maintenance
- Shimano Sora 9-speed gear system shifts precisely and is reliable
- Hydraulic disc brakes stop with composure in all weather conditions
- Concealed mounts on the frame and fork allow mudguards to be fitted
|Frame||BMC Alpenchallenge Aluminium - hydroformed aluminium, internal cable routing, hidden mudguard mounting eyelets|
|Fork||BMC Alpenchallenge Aluminium|
|Handlebar||BMC LSB 03|
|Front Brake||Shimano MT200 hydraulic with RT30 160mm disc rotor|
|Rear Brake||Shimano MT200 hydraulic with RT30 160mm disc rotor|
|Brake Levers||Shimano MT200 hydraulic|
|Front Derailleur||Shimano Sora R3000|
|Rear Derailleur||Shimano Sora R3000, 9-speed|
|Shift Levers||Shimano Sora R3000, Rapidfire Plus, 9-speed|
|Chain||Shimano CH-HG53, 9-speed|
|Cassette||Shimano HG200, 11-32T, 9-speed|
|Crankset||Shimano Sora R3000, 50-34T|
|Front Wheel||Shimano HB-TX505 hub with PFR300 rim, 700c|
|Rear Wheel||Shimano HB-TX505 hub with PFR300 rim, 700c|
|Front Tyre||Continental Contact Speed, 700x35mm, clincher|
|Rear Tyre||Continental Contact Speed, 700x35mm, clincher|
|Saddle||Selle Royal Vivo|
|Seatpost||BMC LSP 03|
|Pedals||Available to be purchased separately|
|Claimed Manufacturers Weight||11.4kg / 25.13lbs (size 51)|
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 specified), 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.
Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. We do not install accessories to bikes, including mudguards.
BMC Alpenchallenge Three Sora Hybrid Bike 2021 Sizing
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