Retrospec Mars 3 Speed Diamond- Black

$ 349.99

Brand Retrospec

Curiosity Rover

The Mars three-speed diamond city bike embodies clarity and refinement. With an internal 3-speed hub and a lightweight and very durable steel frame, this bike is just about unstoppable.

The Drivetrain

This bike is equipped with a Sturmey Archer internal hub. Not only has Sturmey Archer been around for over a century, but they’ve also managed to maintain their reputation of excellence throughout it. The internal hub protects the fragile elements from damage and dirt. An unexposed drivetrain means less upkeep over the lifetime of your bike.

Along with the Sturmey Archer three-speed drivetrain, this city bike uses a RevoShift grip shifter. Switching gears with this mechanism is easy and feels natural. Since it’s integrated into the handlebars and grips, you never have to compromise your focus on your ride, which in turn keeps you safer.

The Build

Hand-built. Tig-welded. High-tensile strength steel. Oh, and lightweight. Those are all traits of our extremely durable Mars diamond frame. Its classic shape compliments its undeniable comfort and lasting durability. The progressive geometry encourages an upright riding position, which is ultimately better for your back and neck.


We strongly suggest that you take your bike to a professional bicycle mechanic to be built. 



Included Accessories: Chain Guard, Center Mount Kickstand, Classic Bell, Vintage Style Bullet Head Lamp, Fenders, Tools

Frame: Lightweight Hand-Built Diamond High-Tensile Strength Steel Frame with Rack and Fender Braze-Ons

Fork: Lightweight Hand-Built Classic Urban Fork

Bottom Bracket: Neco Sealed Cartridge Bearing 110.5mm

Headset: Neco 1"

Handle-Bar: Alloy Riser City Bars 620mm, 60mm rise, 15° sweep, 25.4 Center

Stem: Alloy 30º Rise, 25.4 Clamp, 1" Quill Stem

Grips: Extra-Soft Brown Rubber

Shifter: Shimano 3-Speed RevoShift Grip-Twist Shifter

Brake & Lever: Alloy Dual Caliper Brake & Alloy Four Finger Lever

Rims: 700c Stars Double-Wall Alloy Rim 30mm with Eyelets 32H w/ Machined Sidewall

Front Hub: 32H with Quick Release Hubs

Rear Hub: Sturmey Archer Three-Speed Internal with Freewheel

Tires: Kenda Commuter 700 x 32c, Gumwall

Tubes: Kenda 700 x 32c, Presta Valve

Crank: Protek Alloy 170mm, 44T Chainring

Chain: KMC Z410, 1/2x1/8"

Seat Post: Alloy 25.4 x 300mm

Seat Clamp: Alloy 28.6

Saddle: Synthetic Leather

Pedals: Urban Pedal Alloy 9/16"