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 LT ONE Gravel Bike 2022
Expanding the bounds of what is possible on a gravel bike, BMC’s UnReStricted LT ONE offers front and rear suspension in addition to the usual gravel bike features.
As well as the Tuned Compliance Concept Gravel carbon frame, the 10mm of Micro Travel Technology makes a very noticeable difference to the ride, in terms of both comfort and traction on bumpy climbs. Similarly, the fork has 20mm of suspension that has been specifically tuned for gravel riding, adding lots of control without detracting from the bike’s efficiency. When added to the 42mm of tyre clearance, there is plenty of scope for this bike to tackle terrain far outside the usual gravel bike remit.
The geometry has been developed to complement the bike’s capabilities, with a slack, 70° head tube angle and long wheelbase for stability whilst mudguard and rack compatibility further increase the bike’s versatility; there is even cable routing for a dynamo light hub for extended adventures.
Without any gear cables to stretch or get contaminated, the shifting from SRAM’s 12-speed Force eTap AXS drivetrain is fantastically fast and reliable, with large levers that are easy to hit on bumpy trails. Light 700c carbon wheels and 40mm WTB Raddler tyres combine to give the bike a nimble, fast-rolling feel and as both are tubeless-ready, comfort, grip and puncture resistance are all increased.
Highlights
- BMC URS Premium Carbon frame with 10mm Micro Travel Technology, mudguard and rack mounts
- BMC Micro Travel Technology suspension fork with 20mm travel, mudguard and rack mounts
- 12-speed SRAM Force eTap / Eagle AXS electronic drivetrain
- SRAM Force eTap AXS HRD hydraulic brakes
- 40mm BMC CRD-400 Carbon wheels with tubeless-ready WTB Raddler tyres
Technical Specification
| Frame | BMC URS Premium Carbon with Micro Travel Technology, Tuned Compliance Concept Gravel, Gravel+ geometry, internal cable routing, mudguard and rack mounts, flat mount disc, 10mm travel |
| Fork | BMC Micro Travel Technology suspension fork, premium carbon blades, 20mm travel, coil spring and hydraulic damper, mudguard mounts, integrated brake and hub dynamo routing, flat mount disc |
| Bottom Bracket | PF86 |
| Stem | BMC MSM02 |
| Handlebar | Easton EA70 AX |
| Front Brake | SRAM Force eTap AXS HRD, Centerline X Rotors 180mm hydraulic disc |
| Rear Brake | SRAM Force eTap AXS HRD, Centerline X Rotors 160mm hydraulic disc |
| Brake Levers | SRAM Force eTap AXS HRD |
| Rear Derailleur | SRAM X01 EAGLE AXS 12-speed |
| Shift Levers | SRAM Force eTap AXS HRD 12-speed |
| Chain | SRAM X01 Eagle |
| Cassette | SRAM XG 1275 EAGLE 10-52T 12-speed |
| Crankset | SRAM Force 1 AXS 38T |
| Front Wheel | BMC CRD-400 Carbon, tubeless-ready, 40mm, 700c |
| Rear Wheel | BMC CRD-400 Carbon, tubeless-ready, 40mm, 700c |
| Front Tyre | WTB Raddler, 40mm tubeless-ready |
| Rear Tyre | WTB Raddler, 40mm tubeless-ready |
| Saddle | WTB SL8 Titanium Medium |
| Seatpost | BMC URS 01 Premium Carbon D-shaped, 0mm offset |
| 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.