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 ONE Disc Gravel Bike 2022
Simple and reliable, BMC's UnReStricted AL ONE Disc Gravel Bike has been designed for those who like to venture far from the beaten track. The aluminium frame and carbon fork benefit from Gravel+ geometry for stable, predictable handling off-road, with a slack head tube angle and longer wheelbase providing plenty of confidence. There are mounts for rack and mudguards along with top tube bosses and bolts on the fork legs for attaching luggage too, making the bike ideal for extended trips into the wilderness.
With tubeless-ready 45mm wide WTB Riddler tyres, rough and challenging terrain can be tackled with confidence and comfort, whilst the DT Swiss C1850 SPLINE wheelset adds reliability and strength to the set up. SRAM’s 11-speed Apex 1 groupset is a good match, offering dependable shifting across the 11-42 tooth cassette with large, easy to operate paddles and just a single ring up front for simplicity.
Highlights
- URS Premium aluminium frame with Gravel+ geometry
- URS Carbon fork
- 11-speed SRAM Apex mechanical groupset
- SRAM Apex hydraulic disc brakes
- DT Swiss C1850 SPLINE tubeless-ready wheelset with 45mm WTB Riddler tyres
- Mudguard and rack mounts
Technical Specification
| 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 |
| Stem | BMC MSM02 |
| Handlebar | BMC RAB 03, ergo top shape, compact bend |
| Bar Tape | BMC |
| Front Brake | SRAM Apex HRD-A1 hydraulic disc, 180mm Centerline disc rotor |
| Rear Brake | SRAM Apex HRD-A1 hydraulic disc, 160mm Centerline disc rotor |
| Brake Levers | SRAM Apex HRD hydraulic |
| Rear Derailleur | SRAM Apex 1 long cage, 11-speed |
| Shift Levers | SRAM Apex HRD, 11-speed |
| Chain | SRAM Apex, 11-speed |
| Cassette | SRAM Apex 11-42T 11-speed |
| Crankset | SRAM Apex 1, 40t |
| Front Wheel | DT Swiss C1850 SPLINE, tubeless-ready |
| Rear Wheel | DT Swiss C1850 SPLINE, tubeless-ready |
| Front Tyre | WTB Riddler, 700x45mm, tubeless-ready |
| Rear Tyre | WTB Riddler, 700x45mm, tubeless-ready |
| Saddle | Selle Royal |
| 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.