From fitness training to relaxed cycle path riding. The Specialized Sirrus Disc Step Through is a Women’s specific hybrid sports bike that offers a comfortable and efficient riding position and features the all-weather stopping power of disc brakes.
What sounds like more fun? Being locked in a steamy room staring at someone in front of you for an hour or cruising the open road along a path to total freedom and fitness? Yeah, we'd choose the latter, too, which why we designed the Women's Sirrus Disc with a unique Step-Through design that makes getting on and off the bike, as well as putting a foot down, a total breeze.
It's constructed from a durable, reliable, and lightweight A1 Premium Aluminium, and it features a reliable set of components that are built to withstand years of daily abuse, powerful hydraulic disc brakes that provide reliable stopping power in any condition, and comforting Women's Body Geometry touch points that are sure to take the sting out of long rides.
Go on—put it to work.
Working with our Body Geometry team, we designed a frame that strikes the optimal balance between comfort and efficiency, along with the ease of getting on and off the bike with its step through design. The A1 Premium SL Aluminium construction pairs weight savings with rugged durability, while the rack, fender, and disc mounts give you an incredibly versatile package.
A steel, straight blade fork provides a responsive ride, while the fender and rack mounts give you the option to install rain-fighting fenders and racks that can transport your gear around town.
Promax Solve hydraulic disc brakes are spec'd on this Sirrus to ensure consistent, powerful braking.
All Tredz bikes are:
In the box with every Tredz bike is:
|Frame:||Specialized A1 Premium SL Aluminum, Women|s Fitness Geometry, fully-manipulated butted tubing, internal cable routing, flat mount disc, QR, rack & Plug + Play fender mounts|
|Fork:||Steel, flat mount disc, 1-1/8" steerer, QR, rack & Plug + Play fender mounts|
|Stem:||7-degree, 31.8mm clamp|
|Bars:||Double butted alloy, 9-degree backsweep, 31.8mm|
|Front Brake:||Promax F1, hydraulic disc, flat mount, 160mm rotor|
|Rear Brake:||Promax F1, hydraulic disc, flat mount, 140mm rotor|
|Front Mech:||Shimano Tourney, top swing, 31.8mm clamp|
|Rear Mech:||Shimano Altus, 8-Speed|
|Shifters:||Shimano Altus, RapidFire Plus w/ gear display|
|Rims:||700C disc, double wall|
|Front Hub:||Alloy, 6-bolt disc, loose ball bearing, QR, 32h|
|Rear Hub:||Alloy, 6-bolt disc, 8/9-speed freehub, loose ball bearing, QR, 32h|
|Front Tyre:||Specialized Nimbus Reflect 700x32mm, 26 TPI, wire bead, w/ Flak Jacket protection|
|Rear Tyre:||Specialized Nimbus Reflect 700x32mm, 26 TPI, wire bead, w/ Flak Jacket protection|
|Seat Post:||Alloy, 12mm offset, 2-bolt clamp, 27.2mm|
|Chainset:||Shimano Tourney, 3-piece, 48/38/28T, steel|
|Bottom Bracket:||BSA, 68mm, square taper|
|Chain:||KMC X8, 8-speed w/ Missing Link™|
|Cassette:||Shimano Altus, 8-speed, 11-32t|
|Pedals:||Specialized Body Geometry Fitness, platform, plastic|
Occasionally without notice, manufacturers sometimes change product specifications.
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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.