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.
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Rondo Ruut CF 1 Gravel Bike 2021
Designed with ultimate versatility in mind, the Rondo Ruut CF 1 Gravel Bike blends a refined carbon frameset with an advanced design to offer a fast, comfortable and composed ride whatever the severity of terrain being tackled.
The full EPS carbon frame is light and responsive to grant nimble climbing and rapid accelerations. The seatstays, seat tube and top tube have manipulated carbon layup patterns and profiles to increase cushioning over rough riding surfaces markedly. The horizontally stiff but vertically compliant TwinTip 2.0 fork partners the frame perfectly and integrates a neat system that adjusts the position of the front axle. This system alters the trail, to offer heightened steering reactivity or more composure, depending on the technicality of riding ahead.
The Road Plus Ready design of the frame drops the driveside chainstay so that wider, more voluminous 700c or 650b tyres can be used for increased traction and control without detrimentally affecting reactivity and balance. HUNT Rondo specific wheels are light and robust and possess a 25mm internal rim width to support the use of broader tyres at lower pressures.
A SRAM Force 1 drivetrain partners with a DUB bottom bracket to offering smooth changing between a wide range of gears and efficient power transmission. Hydraulic disc brakes complete the build and give smooth and controlled stopping power, no matter the weather conditions.
Highlights
- A truly versatile gravel bike that is capable of going long and fast especially over rougher terrain
- Full EPS carbon frame is light and laterally stiff
- The frame incorporates Rondo’s Flex Design that shapes and manipulates the carbon layup of the seat stays, top tube and seat tube to increase comfort
- The frame is compatible with either single or double chainring setups
- TwinTip 2.0 Fly carbon fork is horizontally stiff but offers tremendous vertical compliance
- TwinTip concept in the fork adjusts the trail to offer either sporty or more composed handling
- Road Plus Ready design of the frame features a dropped chain stay to offer clearance for 700c x 45mm or 650b x 2.2” tyres
- HUNT Rondo 700c wheelset is strong and light and has a 25mm internal rim width for extra stability and traction at low tyre pressures
- SRAM Force 1 drivetrain with DUB bottom bracket shifts smoothly and grants efficient power transfer
- SRAM hydraulic disc brakes offer modulated stopping power whatever the conditions
Technical Specification
| Frame | Rondo Ruut Flex Design EPS carbon |
| Fork | Rondo TwinTip 2.0 carbon |
| Headset | Upper stack |
| Bottom Bracket | SRAM DUB, EVO 386 |
| Stem | Rondo 80mm (S), 90mm (M), 110mm (L), 110mm (XL) |
| Handlebar | Spank Wing 12 Vibracore, 420mm (S), 440mm (M,L), 460mm (XL) |
| Bar Tape | Velo Comfort tape |
| Front Brake | SRAM Force hydraulic with SRAM RT-CLN-A2 160mm rotor |
| Rear Brake | SRAM Force hydraulic with SRAM RT-CLN-A2 160mm rotor |
| Brake Levers | SRAM Force 1, hydraulic |
| Rear Derailleur | SRAM Force 1, 11-speed |
| Shift Levers | SRAM Force 1, 1 x 11-speed |
| Chain | SRAM PC1130, 11-speed |
| Cassette | SRAM XG1175, 10-42, 11-speed |
| Crankset | SRAM Force 1 DUB X-SYNC 42T 170mm (S), 172.5mm (M,L), 175mm (XL) |
| Front Wheel | Rim - Rondo x HUNT Gravel X-Wide aluminium, tubeless-ready, 700c / Hub - Rondo x HUNT straight pull, 100 x 12mm thru-axle, thread 1.5 |
| Rear Wheel | Rondo x HUNT Gravel X-Wide aluminium, tubeless-ready, 700c / Hub - Rondo x HUNT straight pull, 142 x 12mm thru-axle, thread 1.75 |
| Front Tyre | WTB Nano, 700c x 40mm, tubeless-ready clincher |
| Rear Tyre | WTB Nano, 700c x 40mm, tubeless-ready clincher |
| Saddle | Fabric Scoop Flat Cr-Ti |
| Seatpost | Rondo Carbon, 350mm x 27.2mm diameter |
| Pedals | Available to be purchased separately |
| Claimed Manufacturers Weight | 8.9kg, Size S |
| Please note | Tubeless tape, valve and sealant are not included |
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.