Yes, nice colors on that rocket. Unfortunately, it should be noted that it's not a fixed-gear. Heck, it's not even a singlespeed:
Specifications:
The standard Soyuz Launch Vehicle has three stages. The first stage are the four strap-ons (boosters). The second stage is the central core. The first and second stages ignite simultaneously on the ground.
Please note that each strap-on is using one engine which uses four chambers.
The four strap-ons separate from the core at about 118 seconds after liftoff. When second stage (central core) completes its powered flight, the third stage ignites.
The third stages is comprised of the payload adapter and fairing. It fires for approximately 240 seconds before it cuts off and separates from the second stage.
I don't know about you, but I'm counting (4 strap-on boosters x 4 chambers per booster) + second stage + 3rd stage = at least 18 separate "gears" on this baby. And furthermore, were one to try and convert a rocket such as this one into a fixie or singlespeed, the combination of Russian and French threads would undoubtedly cause a nightmare trying to find a suitable bottom bracket.
So yes, a cool ride, but it really belongs in the Bike Forums > Bike Forums > International Launch Vehicles forum, not here.
