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 Mutt AL 650b Disc Gravel Bike 2021
A multifaceted steed, the Rondo Mutt AL 650b Disc Gravel Bike grants a reliable and sure-footed ride when tackling long distances, commuting and winter training across a variety of surfaces in all weather conditions.
A lightweight, robust and lively alloy frame provides a solid core to the build and is partnered by a vibration-damping full carbon fork. This fork features Rondo’s TwinTip design that allows the axle position to be changed to give either more lively or more composed handling to suit the up and coming terrain.
650b wheels shod with 47mm wide, all-surface tyres come as standard on the build and give a resilient, reliable and comfortable performance that’s full of traction across off-road surfaces. The frameset is also compatible with 700c wheels and skinnier tyres, morphing the performance to match that of a pure endurance road bike.
Mudguards are already installed to protect in the foulest weather and rack mounts are provided to enable the bike to be loaded up with luggage for longer excursions. A Shimano Tiagra gear configuration shifts crisply through a wide range of ratios and hydraulic disc brakes, also from Shimano, stop with aplomb in all conditions.
- A versatile and modern gravel bike designed for the longest of all-road adventures
- Aluminium frame is light but robust and gives a lively ride
- TwinTip 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
- Mudguards are already installed and rack mounts are provided for luggage carrying
- Tyre clearance for 650b x 47mm road-plus or 700c x 30mm tyres
- Rondo 650b alloy wheelset is strong and resilient
- Shimano Tiagra double-chainring gear configuration shifts crisply and provides a vast range of ratios
- Shimano hydraulic disc brakes offer consistent stopping power whatever the conditions
|Frame||Rondo Ruut custom formed AL6061-T6 aluminium|
|Fork||Rondo TwinTip carbon|
|Headset||Rondo - Upper stack|
|Bottom Bracket||FSA, BSA 68mm|
|Stem||Rondo 90mm (S), 100mm (M), 110mm (L, XL)|
|Handlebar||Rondo Road 400mm (S), 420mm (M,L), 440mm (XL)|
|Bar Tape||Velo Comfort tape|
|Front Brake||Shimano Tiagra BR4770 hydraulic disc with Shimano SMRT56 160mm rotor|
|Rear Brake||Shimano Tiagra BR4770 hydraulic disc with Shimano SMRT56 160mm rotor|
|Brake Levers||Shimano Tiagra ST4720|
|Front Derailleur||Shimano 105 FD R7000|
|Rear Derailleur||Shimano 105 RD R4700, 10-speed|
|Shift Levers||Shimano Tiagra ST4720, 10-speed|
|Chain||Shimano HG500, 10-speed|
|Cassette||Shimano KSCHG500, 11-32, 10-speed|
|Crankset||FSA Omega Compact 48/32T, 170mm (S), 172.5mm (M, L), 175mm (XL)|
|Front Wheel||Rim - Rondo aluminium 584-23, tubeless-ready, 650b / Hub - Rondo Superlight sealed bearings, 100 x 12mm thru-axle, thread 1.5|
|Rear Wheel||Rim - Rondo aluminium 584-23, tubeless-ready, 650b / Hub - Rondo Superlight sealed bearings, 142 x 12mm thru-axle, thread 1.5|
|Front Tyre||WTB Byway, 650b x 47mm, tubeless-ready clincher|
|Rear Tyre||WTB Horizon, 650b x 47mm, tubeless-ready clincher|
|Saddle||Fabric Scoop Flat|
|Seatpost||Rondo, 350mm x 27.2mm diameter|
|Pedals||Available to be purchased separately|
|Claimed Manufacturers Weight||10.6kg, 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 or contact Customer Care. We do not install accessories to bikes, including mudguards.