6KU Fixie Bike

Looking for a good bike at a low price? Then the 6KU Fixie is what you’re looking for. It’s the dream single-speed bike that is well-built, sturdy, and ideal for short commutes. Buy it, ride it, and we promise you’ll have a smile on your face. There is no other fixie out there like the 6KU.  

All 6KU Fixies come with a $30 value of FREE tools included with every bike purchase.

  • Comfortable Steel Frame
  • Reliable Front and Rear Brakes
  • Fixed or Freewheel with a Flip-Flop Hub
  • Easy Maintenance and Upkeep
  • 30-Day Hassle-Free Return Policy
What's Included
Find My Size
Specifications
How to Build
What's Included
Find My Size

Full Geometry Chart

Geometry



FRAME SIZE
HEIGHT
42cm
4'11" - 5'2"
49cm
5'2" - 5'5"
52cm
5'5" - 5'9"
55cm
5'9" - 6'1"
58cm
6'1" - 6'5"
A | Top Tube 483 510 535 560 580
B | Seat Tube C-T 420 510 540 570 600
C | Stand Over 722 762 787 815 850
D | Stack 492 500 520 551 574
E | Reach 372 383 395 397 405
F | Head Tube Angle 73° 73° 73° 73° 73°
G | Seat Tube Angle 74° 74° 73° 73° 72°
H | Fork Rake 38 37 37 37 37
I | B.B. Drop 60 60 60 60 60
J | Wheelbase 961 971 972 980 992
K | Chain Stay 400 400 400 400 400
L | Head Tube 85 90 105 135 160
Specifications
How to Build

Customer Reviews

Based on 973 reviews
76%
(736)
13%
(126)
5%
(50)
1%
(14)
5%
(47)
R
Ramis Nazir
Good bike for the price

Bike is great, only thing I took a star off for was that the manual in the box isn’t specific to the bike. It would have been better to provide a link in the manual to the assembly video on their website, which is specific to the bike and much easier to follow.

T
Tyler Edrington
No Response for Missing Delivery

UPS reported that my bike delivered, but it never was. It's impossible to contact anyone at 6KU. I sent emails a week ago with no response, and the contact # is not active.

A
Angelho Diaz
What a good/smart choice

Beautiful bike. Just the main weel stick is too short and have to add an adapter for a better body position. I'm lucky to have found u guys!

J
Jason Ellyson
Great bike

For $249 you can’t go wrong! This is my first
fixie/single speed, I come mainly from a mountain bike background. This bike is beautiful in it’s simplicity, but it also has nice lines and good style for a very cost effective bike. I built it out of the box which was fairly simple and a nice touch for people who aren’t too familiar with building bikes. The only thing I had to do to it was adjust the brakes. There was a lot of play in the brake levers so I took out the slack in the lines and they became a lot more responsive. I have worked on my own bikes for many years and was a bike mechanic for a few years too, if you aren’t comfortable doing this work on your own, take it to your local bike shop for help. I ordered new pedals because I wasn’t wild about the feel of the stock ones. I also put in new grips but that was purely cosmetic. All in all this is a great bike and I would recommend to anyone looking for a fun urban rider. I’ve put some miles on it and it’s holding up well and I am a bigger guy too. I weigh 300lbs and when I really hammer down on the bike nothing feels likes it’s going to fail on me.

p
patti fonseca
Second one!

Love this bike so much I bought another one after mine was stolen.