2025 Specialized Sirrus X 1.0 Step-Through – Fitness Bike
Specifications
|
Specification |
Details |
|
Model |
Sirrus X 1.0 Step-Through |
|
Vehicle Category |
Fitness Bike |
|
Application |
Commuting, fitness, exploration, gravel riding |
|
Starting Price (2025) |
$699.99 USD |
|
Color Options |
Satin Deep Marine / Grey Blue Reflective |
|
Sizes |
XS, S, M |
Frame & Drivetrain
|
Specification |
Details |
|
Frame |
Specialized A1 Premium Aluminum, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, quick-release, Plug + Play rack/fender mounts |
|
Fork |
Hi-Ten steel, flat-mount disc, Plug + Play fender mounts, low rider rack mounts, quick-release |
|
Drivetrain Compatibility |
Shimano Acera, 7-speed |
|
Dropouts |
Quick-release (F), quick-release (R) |
|
Crank |
PROWHEEL, Alloy, 165mm, 40T |
|
Chain |
KMC X8 w/ Missing Link™ |
|
Rear Derailleur |
Shimano Acera RD-M3020, 7-Speed |
|
Shifters |
Shimano Altus SL-M315-7R, 7-Speed |
|
Cassette |
microSHIFT CS-H074, 12-40t, 7-Speed |
Components & Features
|
Specification |
Details |
|
Seating |
Bridge Sport, Steel rails, 155/143mm |
|
Cargo Capacity |
Plug + Play rack/fender mounts, low rider rack mounts (capacity not specified, assumed compatible with standard racks) |
|
Wheels/Tyres |
700C disc brake, double-wall alloy, 22mm depth, 21mm internal width, stainless 14g spokes, Pathfinder Sport, 700x42mm, Standard 40mm SV 700x32-50 |
|
Wheel Size |
700C front, 700C rear |
|
Brakes |
Tektro MD-U310R, Mechanical Disc |
|
Brake Levers |
Tektro, mechanical |
|
Handlebar |
Double-butted alloy, 5-degree backsweep, 25.4mm |
|
Stem |
Alloy, 25.4mm, 10deg |
|
Headset |
Not specified (assumed integrated, sealed cartridge bearing) |
|
Saddle |
Bridge Sport, Steel rails, 155/143mm |
|
Seatpost |
Alloy, 12mm offset, 2-bolt clamp, 27.2mm |
|
Seatpost Clamp |
Bolt-type, 31.8mm |
|
Grips |
Specialized Neutralizer, Body Geometry, locking grip |
|
Front Hub |
Alloy, 6-bolt disc, loose ball bearing, quick-release, 32h |
|
Rear Hub |
Alloy, 6-bolt disc, 7-speed freehub, loose ball bearing, quick-release, 32h |
|
Rims |
700C disc brake, double-wall alloy, 22mm depth, 21mm internal width |
|
Spokes |
Stainless, 14g |
|
Pedals |
Specialized Body Geometry Fitness, platform, plastic |
|
Exterior Features |
Plug + Play rack/fender mounts, low rider rack mounts |
|
Weight |
11.95 kg (26 lb, 5.5 oz) for size MD |