Invincible 1Speed

Bike Details:

  • Custom security bolts that keep your bike components protected from thieves
  • Rust-stopping frame + chain 
  • Comes 80% assembled. You do the rest with our awesome online assembly instructions
  • Includes custom security tools 
  • Lights sold separately
  • Please Double Check Sizing!


  • Simple Sizing Guide:
    Small: 5'2"-5'6" (50cm)
    Medium: 5'7"-5'11" (54cm)
    Large: 6'0"-6'-2" (58cm)
    *Our bikes run slightly large
    Advanced Sizing Guide
  • Weight: 23 Pounds (Total Weight)


    700c Road Single Speed - 6061 Rustproof Aluminum, 1-1/8” Semi-Integrated Head Tube Horizontal Drop-Outs, Rack & Fender Mounts


    Fortified 700c 6061 Aluminum Fork With Rack & Fender Mounts with Clearance for Fenders


    Promax 15 degree 20mm rise


    Length = 90mm (S/M) Length = 105mm (L)
    Threadless, 7 deg, 6 Bolts M5*17mm

    Brakes: Promax Dual Pivot Caliper w/ Quick Release Arms

    Brake Lever: Promax Road Lever, Cross Lever
    Tire: 700 x 32 with Puncture Protection

    Chain Tensioner: Dual Adjustable Chain Tensioner
    Chainring: Prowheel Steel Chainring, Alloy Guard & Arm, 42T

    Crank: ProWheel Crank, Square Taper, 175mm x 130 BCD 
    Bolt Diameter 70mm

    Chain: KMC Rustbuster

    Decal: Fortified Retroflective Decal

    Security Bolts: Fortified Proprietary Stainless Steel Water Bottle Screws, Top Cap Bolt, Stem Face Plate Bolts and S/S Bolts

    Wheel Locks: Delta Fort Knox locking hub nuts
    Weight Limit:
    270 Pounds
    Gear Ratio: 42:16


Proprietary Security Bolts
Puncture-proof Tires


* International orders may be subject to duties and customs fees. The purchaser is responsible for these fees. 

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