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.
Rondo Ruut ST 1 Gravel Bike 2021
With a classically styled steel frame, carbon fork and reliable components, the Rondo Ruut ST 1 Gravel Bike is the ideal partner for tackling the daily commute or for exploring over rough terrain at the weekends.
The Tange Prestige steel frame naturally infuses a smooth and composed ride and adds S-shaped seatstays and a top tube with an oval profile to improve comfort over rougher riding surfaces. A lightweight, full carbon fork partners the frame and lends heightened steering reactivity and vibration dampening to the front end of the bike. This fork also allows the position of the axle to be altered between two positions, making the ride characteristic either more agile or more composed to suit the technicality of the riding ahead.
Full mudguard and luggage rack mounts aid on longer bike packing trips or commuting, even in foul weather, while generous frameset-to-tyre clearance allows broad rubber to be used over harsher tracks and paths.
A SRAM Rival drivetrain shifts smoothly and reliably across a wide range of gears and drives the light and resilient Rondo alloy wheelset. SRAM hydraulic disc brakes complete the build with consistent and powerful stopping power.
Highlights
- A classically styled gravel bike that is perfect for commuting or weekend riding across rough terrain
- 2.0 Tange Prestige steel frame is smooth and comfortable
- Rondo’s Flex Design shapes the seatstays and ovalises the top tube to increase comfort
- 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
- Mudguard and luggage rack mounts
- Tyre clearance for 700c x 40mm or 650b x 2.1” tyres
- Rondo 700c alloy wheelset is strong and light
- SRAM Rival 1 drivetrain shifts smoothly and grants efficient power transfer
- SRAM hydraulic disc brakes offer modulated stopping power whatever the conditions
Technical Specification
| Frame | Rondo Ruut ST 2.0 Tange Prestige Steel |
| Fork | Rondo TwinTip 2.0 carbon |
| Headset | Rondo - Upper stack |
| Bottom Bracket | SRAM, BSA 68mm |
| Stem | Rondo 80mm (S), 90mm (M), 110mm (L), 110mm (XL) |
| Handlebar | Rondo Flare 420mm (S), 440mm (M,L), 460mm (XL) |
| Bar Tape | Velo Comfort tape |
| Front Brake | SRAM Rival hydraulic disc with SRAM G2CS 160mm rotor |
| Rear Brake | SRAM Rival hydraulic disc with SRAM G2CS 160mm rotor |
| Brake Levers | SRAM Rival, hydraulic |
| Rear Derailleur | SRAM Rival 1, 11-speed |
| Shift Levers | SRAM Rival 1, 1 x 11-speed |
| Chain | SRAM PC1130, 11-speed |
| Cassette | Sunrace CSMS7, 11-42, 11-speed |
| Crankset | SRAM S350 X-SYNC 42T 170mm (S), 172.5mm (M,L), 175mm (XL) |
| Front Wheel | Rim - Rondo aluminium 622-23, tubeless-ready, 700c / Hub - Rondo Superlight sealed bearings, 100 x 12mm thru-axle, thread 1.5 |
| Rear Wheel | Rim - Rondo aluminium 622-23, tubeless-ready, 700c / Hub - Rondo Superlight sealed bearings, 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 |
| Seatpost | Rondo, 350mm x 27.2mm diameter |
| Pedals | Available to be purchased separately |
| Claimed Manufacturers Weight | 10.2kg, 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 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.
Rondo Ruut ST 1 Disc Gravel Bike 2021 Sizing
Forgotten Your Password?
Please enter your registered email address below and we'll send you an email explaining the next step.
Select a store
Select the store you visit most frequently below and their stock information will show on product pages.