Invincible 1Speed

A smooth, solid ride designed to survive the city:

• Custom security bolts that keep your bike components protected from thieves
• Puncture-resistant tires to prevent flats
• Rust-stopping frame + chain
• Weather-proof saddle
• Free shipping in the U.S.
• Comes 80% assembled. You do the rest with our awesome online assembly instructions

• Fortified Theft Protection
• Sizing Guide
• Specs

• To get a replacement bike or component in the mail if yours is ever stolen, add our theft replacement guarantee. How our guarantee works.

  To activate your theft protection, you must register your bike online within 30 days of delivery: fortifiedbike.com/register

• Simple Sizing Guide:
  Small: 5'2"-5'6" (50cm)
  Medium: 5'7"-5'11" (54cm)
  Large: 6'0"-6'-4" (58cm)
  *Our bikes run slightly large
  Advanced Sizing Guide

• Weight:	23 Pounds (Total Weight)
  Frame:	700c Road Single Speed - 6061 Rustproof Aluminum, 1-1/8” Semi-Integrated Head Tube Horizontal Drop-Outs, Rack & Fender Mounts
  Fork:	Fortified 700c 6061 Aluminum Fork With Rack & Fender Mounts with Clearance for Fenders
  Handlebars:	Promax 15 degree 20mm rise
  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
  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