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AVASTA 50cm Single-Speed Fixed Gear Urban Commuter Bike, Black

$299.99 (Price correct as of 11/14/2026 14:56 PST · Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.)

The AVASTA 50cm single-speed fixed gear urban commuter bike is a black city bike with a flat handlebar, flip-flop hub, carbon steel frame, dual brakes, and 700 x 28C tires. It arrives 90% pre-assembled with essential tools included, and the 50cm size is the key fit point to compare before choosing a bike version.

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SKU: B0CS61S96Q Category:

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Quick Summary

The AVASTA 50cm single-speed fixed gear urban commuter bike is a black city bicycle with a flat handlebar and a flip-flop hub. It is set up for fixed gear or freewheel riding, so the riding mode depends on how the hub is configured.

The frame is carbon steel, and the bike is described with 700 x 28C tires, 40mm deep V rims, a KMC chain, freestyle pedals, and dual brakes. The bike is listed as 90% pre-assembled and includes essential tools for setup.

Key Details

Detail Product information and buyer relevance
Brand AVASTA
Product type Single-speed fixed gear urban commuter bike
Size 50cm
Color Black
Handlebar Flat handlebar
Hub Flip-flop hub for fixed gear or freewheel riding
Frame Carbon steel frame
Tires 700 x 28C tires
Rims 40mm deep V rims
Chain KMC chain
Pedals Freestyle pedals
Brakes Dual brakes
Assembly 90% pre-assembled, with essential tools included

What to Compare Before Buying

  • Size: This version is the 50cm bike. Compare that frame size with your height and riding position needs before choosing a size.
  • Riding mode: The flip-flop hub supports fixed gear or freewheel riding. Check which setup you want before you choose an offer.
  • Brake setup: The bike has dual brakes. Compare that with the braking setup you prefer for city riding.
  • Assembly: It arrives 90% pre-assembled and includes essential tools. Compare that with the amount of setup you want to handle at home.
  • Parts and build details: Tires, rims, chain, pedals, and frame material are all part of the bike’s configuration. Compare those details with the ride feel and maintenance level you expect.

Compatibility, Size and Fit

The 50cm size is the key fit detail for this bike. The description also associates the 50cm version with riders around 5’1" to 5’6". If you need a different fit, the same bike line is also described in 54cm and 58cm sizes.

Flat handlebars, a fixed gear or freewheel setup, and the listed wheel and tire configuration all affect riding position and handling feel. Confirm the size and riding style before choosing an offer.

What Else You May Need

The bike includes essential tools for setup, but you may still want to confirm whether the selected offer includes anything beyond the main bike itself. Check the exact contents if you are comparing different offers.

Before You Decide

Confirm the 50cm size matches your fit needs, especially if you are comparing it with the 54cm or 58cm versions. Also check whether you want fixed gear or freewheel riding, since the flip-flop hub supports both.

If you want a bike with a flat handlebar, dual brakes, and a 90% pre-assembled setup, this version keeps those details front and center before you choose an offer.

Fixed Gear and Freewheel Behavior

In fixed-gear mode, the rear wheel drives the pedals, so they turn whenever the wheel turns. In freewheel mode, the rear wheel can spin while the pedals remain still. Choose the hub configuration with this difference in mind, especially if you expect to coast without pedaling.

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