Give your fitness journey a boost. The Specialized Sirrus Expert is a carbon framed road bike that combines smooth rolling efficiency with a flat handlebar that gives you easier handling on urban roads. The Specialized Sirrus is a great choice for commuting as well as fitness training.
We understand that fitness bikes can get a bad wrap. All too often, they err on the side of value over performance, leaving you feeling in between, and frankly, a little burned. But we're happy to say that our Sirrus Expert Carbon is out to change that by providing the perfect blend of everyday efficiency with the performance you need to hit your fitness goals at speed.
To do so, we started with a high quality FACT 9r carbon fibre construction that's lightweight and extremely responsive, not only making the Sirrus a better climber, but also making it easier to carry up the stairs after your commute. Onto what we like to think is the best part of the new Sirrus, though, our new Future Shock. Essentially, it's a piston in the head tube with 20mm of travel. We developed this technology in partnership with McLaren Applied Technologies, and the result of this relationship are a host of drastic performance improvements, namely in the vertical compliance department. Without giving a physics lecture, we found that is improves smoothness, speed, and comfort in one fell swoop.
We equipped this bike with a wide range of gears from the Shimano & microSHIFT components, plus next level comfort that follows our scientifically tested and engineered Body Geometry components. So as you push yourself to reach your goals. It'll leave you feeling like you have the perfect partner on your path to health and wellbeing.
The FACT 9r carbon fibre frame is engineered and designed with our Fitness Geometry, helping you ride more efficiently in a position that will see you riding comfortably, mile-after-mile. And the all-new Future Shock "suspension" system at the cockpit delivers a revolutionary degree of comfort and control.
The lightweight FACT carbon fibre fork provides a smooth, responsive ride, while the Plug + Play fender mounts give you the option to install rain-fighting fenders.
Braking duties are handled by TRP Flow Set Control hydraulic disc brakes to ensure effective, consistent, and reliable power through any kind of terrain or condition.
All Tredz bikes are:
In the box with every Tredz bike is:
|Frame:||Specialized FACT 9r carbon, Fitness Geometry, 12x142mm thru-axle, internal cable routing, flat mount disc, rack, Plug + Play fender mounts|
|Fork:||Specialized FACT 9r carbon, 12x100mm thru-axle, flat mount disc, Plug + Play fender mounts|
|Stem:||Alloy, 7-degree, 31.8mm|
|Bars:||Double butted alloy, 9-degree backsweep, 31.8mm|
|Front Brake:||TRP Flow Set Control, hydraulic disc, resin pads, flat mount, 160mm rotor|
|Rear Brake:||TRP Flow Set Control, hydraulic disc, resin pads, flat mount, 140mm rotor|
|Front Mech:||microSHIFT Centos, 11-speed, braze-on|
|Rear Mech:||Shimano 105, GS cage, 11-speed|
|Shifters:||microSHIFT Flow Set Control|
|Rims:||700C disc, double wall, 24h front, 28h rear|
|Front Hub:||Alloy, 12x100mm thru-axle, 6-bolt disc, sealed bearing, 24h|
|Rear Hub:||Alloy, 12x142mm thru-axle, 11-speed Shimano compatible freehub, 6-bolt disc, sealed bearing, 28h|
|Front Tyre:||Specialized Espoir Sport Reflect, 700x30mm, 60 TPI, double BlackBelt protection|
|Rear Tyre:||Specialized Espoir Sport Reflect, 700x30mm, 60 TPI, double BlackBelt protection|
|Seat Post:||Specialized Comp carbon, 21mm offset, single bolt, 27.2mm|
|Chainset:||Praxis Alba M30, solid forged arms, 6061 chainrings, 110 BCD, 11-speed, 48/32T|
|Bottom Bracket:||Praxis M30, BSA|
|Chain:||KMC X11, 11-speed w/ Missing Link™|
|Cassette:||Shimano 105, 11-speed, 11-32t|
|Pedals:||Platform, alloy cage|
Occasionally without notice, manufacturers sometimes change product specifications.
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The last date to order a bike that is available for Christmas delivery is 5pm, Tuesday 19th December. For all other items that are available for Christmas delivery, the last date to order is 12pm, Wednesday 20th December.
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We will give you a full refund or exchange on any item that is returned to us unused/unfitted, in a resaleable condition and in its original packaging (where possible).
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If your item develops a fault or arrives damaged, please contact us first so we can resolve the issue for you as quickly as possible.
For more information please visit our Returns & Warranty page.
As cyclists ourselves, we know you will be keen to get out on your new bike as soon as possible. That's why we provide you with all the essential kit you need to get your shiny new bike rolling for the first time.
Most bikes don't come with pedals as standard so we include a set of basic pedals, free of charge with every bike we send out. We will also provide you with a pedal spanner to fit them and a 9-key trail tool, along with full instructions for setting your bike up out of the box. Each bike is sent out with a 16 point, quality control check sheet so you can be confident that your bike has been fully checked by our qualified mechanics.
All these items are provided at no extra charge and are packed into a Tredz drawstring bag that doubles up as a handy backpack for carrying your ride essentials.