- Mantra Fixed-Gear/Single-Speed Crankset Black / 44T, Retrospec Bicycles - 1

Mantra Fixed-Gear/Single-Speed Crankset

$ 39.99
Lime Green

Ride Strong, Ride Smooth

Here is the Mantra Crankset. This upgraded three-piece crankset is made of a lightweight alloy crank combined with a steel chainwheel for superior strength and a smooth cadence every ride. It’s better forged, which means the material is denser and stronger but still lighter than steel. With this beefier crankset, you get more power to the ground, which means you’re going faster with less deflection. The thicker arm and different bolt pattern featured on the Mantra Crankset provides more torque when riding. Once installed, you’re on your way to a more efficient ride, reducing the necessity to visit shops with crankset maintenance issues.

The Details

The crank arm measures 170mm and doesn’t have any overlap of crank arm and chainring bolts. The standard bolt circle diameter (or BCD) is 130mm. It accommodates 9/16” pedals.

Ride Like You Want To

Available in a ton of colors and sizes, you can pick the right choice for you and your bike. A smaller size will make accelerating simpler while a larger size will increase your highest speed.


    • Three-piece forged aluminum crankset
    • All new crank arm design is much stronger for faster, more aggressive riding
    • Fits on road, mountain fixies, BMX, track, and single-speed bikes
    • 170mm Crank Arm Length without any overlap of crank arm & chainring bolts
    • Standard Bolt Circle Diameter (BCD): 130mm
    • Takes 9/16" pedals


    Shipping on all orders over $65 heading anywhere within the contiguous U.S. is free. Shipping on orders under $65 will cost a flat rate of $7.98. You can also choose to have signature required when your products are delivered for an additional $5.98.

    We try really hard to ship all orders within 1 business day, but sometimes we're backed up. Most orders will go out within 3 business. Your order will be delivered within 1-5 business days.

    We ship most of our orders out through FedEx. Keep this in mind when you're choosing a shipping method. If you don't request a signature and you're not home when FedEx arrives, it is left up to the driver's discretion to leave the package or not. Sometimes we send smaller orders out through USPS.

    Check out more information about our shipping policies here.

    Returns Policy

    Great news! We offer a 50 day return policy! Returns are accepted for the full product credit if received at our warehouse within 50 days of the date of purchase in the original packaging that is still in retail condition.

    Please bear in mind that our refunds do not include reimbursement of shipping fees.

    Check out more information regarding our return policy here.

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