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 UnReStricted AL TWO Disc Gravel Bike 2022
The durable, lightweight frame utilises BMC’s Gravel+ geometry, with a slack head tube angle and long wheelbase for stability and control off-road without reducing the bike’s fun factor. The inclusion of luggage mounts on the top tube and fork legs along with provision for a rack and mudguards extends the bike’s range so that it can be loaded up and taken away for multi-day trips quite happily.
Designed as a gravel-specific groupset, Shimano’s GRX components blend elements from their road and mountain bike ranges, so that the drop bar shifting is quick and precise whilst also being able to cope with the knocks and scrapes of dirt riding. A single front ring brings simplicity, and a wide-range cassette enables any incline to be tackled head-on, no matter the load. WTB’s 45mm wide Riddler tyres add comfort, grip and control off-road but feature smaller centre blocks for less drag on smoother sections of the ride.
- URS Premium aluminium frame with Gravel+ geometry
- URS Carbon fork
- 11-speed Shimano GRX mechanical groupset
- Shimano GRX hydraulic disc brakes
- BMC PRD23 wheelset with 45mm WTB Riddler tyres
- Mudguard and rack mounts
|Frame||BMC URS Premium aluminium Gravel+ geometry, internal cable routing, mudguard and rack mounts, flat mount disc, 12x142mm thru-axle|
|Fork||BMC URS Carbon, internal brake and hub dynamo cable routing, mudguard and cargo mounts, flat mount disc, 12x100mm thru-axle|
|Bottom Bracket||BMC PF86|
|Handlebar||BMC RAB 03, ergo top shape, compact bend|
|Front Brake||Shimano GRX 600, SM-RT64 rotor 160mm|
|Rear Brake||Shimano GRX 600, SM-RT64 rotor 160mm|
|Brake Levers||Shimano GRX 800 hydraulic|
|Rear Derailleur||Shimano GRX 800, 11-speed|
|Shift Levers||Shimano GRX 800, 11-speed|
|Cassette||Shimano SLX 11-42T 11-speed|
|Crankset||Shimano GRX 600, 40t|
|Front Wheel||BMC PRD23 rim with CL-712 hub|
|Rear Wheel||BMC PRD23 rim with RXC-1425 hub|
|Front Tyre||WTB Riddler, 700x45mm, tubeless-ready|
|Rear Tyre||WTB Riddler, 700x45mm, tubeless-ready|
|Seatpost||BMC RSP 03|
|Pedals||Available to be purchased separately|
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.
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.