Marin Four Corners 1 (Dark Purple)
741777001
A steel touring bike for the rider who wants to load it up and disappear for a week, with enough mounts and tyre clearance to carry everything that trip needs without ever feeling fragile underneath it.
Overview
The Four Corners 1 is Marin's dedicated loaded-touring and bikepacking platform, built around a Series 1 CrMo steel frame specifically because steel flexes rather than fatigues under the repeated stress of a fully loaded rack - exactly the stress a multi-day tour puts on a frame. The matching CrMo fork carries its own fender, rack, and bottle eyelets, and the whole bike is designed around the idea that you'll be hanging bags, racks and bottles off nearly every tube.
It's specced with a microSHIFT Sword 2x9-speed drivetrain (46/29T crank, 11-38T cassette) for a wide enough range to haul a loaded setup up a climb, Tektro Spyre-C mechanical disc brakes for reliable, field-serviceable stopping power, and Vee Tire Co. Quickstyx tyres sized 700/650x45 - wide enough to handle gravel and dirt doubletrack, not just sealed roads. Smaller frame sizes roll on 650B wheels specifically to keep standover and handling proportionate for shorter riders without changing the bike's character.
This is the bike for someone planning an actual loaded tour or multi-day bikepacking trip - audax-style long days, mixed road-and-dirt touring, or a slow, self-supported trip across varied terrain where reliability matters more than outright speed.
Why You'll Like It
Steel that's built to be loaded
The CrMo steel frame and fork are designed around real cargo weight, with multiple gear mounts across the frame and fork so panniers, cages and a rack all have a dedicated place to attach.
Gearing for loaded climbs
The 2x9 microSHIFT Sword drivetrain with an 11-38T cassette gives a genuinely low bottom gear, which matters far more once four panniers and a tent are on the bike.
Brakes you can fix on the road
Tektro Spyre-C mechanical disc brakes use a simple cable actuation, so adjustment and pad changes don't need a bleed kit or hydraulic know-how mid-tour.
Tyres that handle the unplanned detour
At 700/650x45, the stock Vee Tire Co. Quickstyx tyres roll efficiently on pavement but have enough volume to handle gravel, dirt roads and the occasional rough shortcut.
A seatpost ready for a dropper
The frame includes a dropper-compatible port at the seat tube, so riders who want more control on rough descents can add one later without a new frame.
Who Is It For?
The Four Corners 1 is built for riders planning genuine multi-day touring or bikepacking - carrying camping gear, cooking kit and clothing across varied terrain where the bike needs to be dependable far from a shop. It also suits long, loaded audax-style rides and mixed road-and-dirt exploring, where comfort over many hours matters more than outright pace.
In India, that translates well to multi-day highway and backroad touring between towns, where road surfaces shift unpredictably from smooth tarmac to broken edges and gravel shoulders - exactly the mixed terrain this bike's tyre clearance and steel frame are built to absorb. It's also a strong choice for a rider training for self-supported long-distance rides who wants one bike that won't need babying.
A second, equally valid audience is the commuter who wants to carry real cargo daily: the same rack and fender mounts that make this a touring bike make it a dependable load-hauling commuter the rest of the year.
Good to Know
The square-taper bottom bracket and 27.2mm seatpost are widely available standard sizes, so replacement parts are easy to source almost anywhere. The frame's multiple gear mounts mean a third water bottle cage, a frame bag, or extra cargo cages can all be added without needing frame modifications.
Because the fork carries its own rack and fender eyelets, a front low-rider rack can be fitted directly without an adapter, which is worth knowing before planning a front-and-rear loaded setup.
Technical Specifications
- Frame: Series 1 CrMo steel, butted and formed 4130, fender/rack/disc and multiple gear mounts
- Fork: Series 1 CrMo steel, fender/rack/bottle eyelets, lowrider mounts, IS disc mount
- Shock: N/A - rigid fork, no suspension
- Bottom Bracket: Square taper, sealed bearing
- Chain: KMC X9
- Crank: Forged aluminium, 46/29T
- Shift Levers: microSHIFT Sword, 2x9-speed, integrated with brake levers
- Cassette: microSHIFT, 9-speed, 11-38T
- Front Derailleur: microSHIFT Sword
- Rear Derailleur: microSHIFT Sword, 9-speed
- Grip/Tape: Marin comfort bar tape with gel pads
- Handlebar: Marin butted alloy, compact 16° flared drop
- Stem: Marin 3D forged alloy, 70mm
- Saddle: Marin MTB
- Seatpost: Marin alloy, 27.2mm, dropper-compatible port
- Front Brake: Tektro Spyre-C mechanical disc, 160mm rotor
- Rear Brake: Tektro Spyre-C mechanical disc, 160mm rotor
- Front Wheel: Marin aluminium double-wall disc rim, forged alloy hub, 32H, 14g black stainless spokes
- Rear Wheel: Marin aluminium double-wall disc rim, forged alloy hub, 32H, 14g black stainless spokes
- Front Tire: Vee Tire Co. Quickstyx, 700/650x45
- Rear Tire: Vee Tire Co. Quickstyx, 700/650x45
- Pedal: Nylon platform
Additional Information
- Country of Origin: China
- Imported By: Ciclo Essentials Private Limited, B-55A, Sahakar Marg, Jaipur - 302005, India.
- Net Quantity: 1N
- Customer Care Address: 291, 10 Main, 5 Block, Jayanagar, Bangalore - 560041. Ph: (080)47183232, Email: support@bumsonthesaddle.com
- Commodity: Bicycles
