6KU Aluminum Fixed Gear Single-Speed Fixie Urban Track Bike

I was surprised to find zero reviews on this bike when I was shopping around, so I assume it's relatively new to Amazon. I checked some opinions around the net for this brand and found them favorable enough, when considering the price point, so I took the risk.It was worth it.This bike feels high quality, is much lighter than my previous beater/commuter from a similar price range (stolen): Takara Kabuto Single Speed Road Bike, and I'm really quite happy with it. Because of the ridiculously high number of bike thefts in San Francisco, I don't look for expensive bikes so value for money is important. Packaging was sufficiently strong to keep everything in good condition en route to me and there was an included manual that covers basic bike construction and maintenance. 6KU also included some stickers in the box and some velcro straps that I've yet to determine a use for.Pros:- Bolts and chain were appropriately lubricated- Welds look very high quality- Handlebar grip tape has some squish to it- Visual appearance is high quality, the matte black is uniform and great looking- Construction was straightforward and there are small guide markings in a few places to help with alignment and setup (for example: seat forward/back and bullhorn handlebar angle)- Weighs less than expected- Brakes were well calibrated out of the box and apply equal and solid pressureNeutral:- Seat is moderately comfortable if a bit high friction and slightly long (note contact with bag in pictures), but may be on my list to replace over time- Rear tire was installed backwards. The chain was set on the non-fixed side but the tire rubber ride direction was set for the reverse so I had to take the rear tire off and deflate it and flip the tire on the wheel- No bottle cage mount points- Brake pads are fairly cheap and I will likely replace them (this is almost a non-issue as brake pads are so cheap)Cons:- Pedals are fairly cheap and large.- Wheel reflectors are unavoidably wobbly- Front reflector mount literally has no place to be mountedOverall I'm going with 5 stars instead of 4 as I don't think the above cons are negative enough to lower the rating at this price point. For what I paid, this is a solid bike. If half stars were an option it'd be a 4.5.

You get what you pay for, and then a little more....problem is your not paying very much. Overall this is a solid bike for the price, but don't expect any frills or reliable parts. I ride this bike every day as my primary mode of transit, probably around 50 miles every week.My 5 month review (part by part):Frame & Fork - 4.5/5: Very happy, minor gripes are a 'hard shell' enamel style paint that chips easily and the lack of mounting points for any sort of water-bottle holder etc.Wheels 5/5: No complaints here, just know the black paint/coating will be quickly worn off the rim by the break-pads.Flipflop Hub 2/5: This had a little 'grind' and uneven resistance right out of the box. After months of riding it has only gotten worse. Unimpressed, soon to be replaced.Tubes 4/5: Had some ruptures fairly quickly, though I do ride it hard over rough city streets.Breaks 4/5: They work well, and I am glad to have front and back. However the front breaks came a little bent meaning the pads are impossible to correctly align and wear faster. Also the pads it comes with are fairly stiff but get the job done.Crank and Sprocket 5/5: I want to rate them lower as they seem very cheap. That being said I have had no problems so....Pedals 4/5: They are nice and large!! Though the plastic does give a little flex under full weight when peddling. Could be more sturdy. I upgraded to metal fairly quickly.Handlebars and Neck 5/5: I was expecting to buy a set of bullhorns, but these really do feel great. The short length and angle of the neck make them feel very aggressive.Seat 2/5: I mean technically there is nothing wrong with this. But I am used to riding BMX plastic seats, and even those were somehow more comfortable. It really put a lot of uncomfortable pressure on me when seated in almost any position. I replaced this within a week.TLDR: The big parts they get right, everything else is where they save money and bring the cost down. Still a good deal, expect to replace a bunch of parts in the near future.

Like other people said you simply can't beat what you get for the price, I've had the bike one week now I'm loving it, The only slight drawback I have is the bullhorn bars are a bit too narrow for me, looks like this will be my first upgrade, also I've noticed the rear tire has the slightest/smallest of leaks but that is to be expected with presta valves especially in this price range but nothing drastic I just pump it up a bit before some rides.I was noticing slight creeks from the stem/handlebar but that was due to me not tightening enough during my tune in phase on build.I'll update this review after some more riding but so far so good.KUDOS to 6KU on the bag of stickers I got with the bike too :)*Update* 1/29/17The bottom bracket is creaking now, looks like I'll need to replace it, but expected this based on another buyer saying the same thing, but i can't wait to put in a better one anyways, these bikes are all about customization and upgrading.Update: so I've replaced the BB and made some external cosmetic mods, and I'm loving the bike. Added new up to date pics.

This bike is almost perfect. It was very easy to assemble. The fit was great as well. I am 5'11" and 160 lbs with a longer torso and rather shorter legs, and 55cm is a perfect fit. Every component seems to be pretty decent and durable except the rear wheel. It was a bit lob-sided and also the freewheel component is either missing a ball bearing or under lubricated, which prevents the wheel from rotating freely. Because of that, it requires more pedaling and also climbing hills a lot harder than expected.Other than the back wheel, I like everything else about it. Affordable and well-built.*** UPDATE ***It turns out the sound was caused by the tight chain tension. Once I loosen it up by moving the backwheel a tad bit closer to the crankset, the sound went away.

Day 3 Review Will Update In a few months or if something goes wrong that's not my fault. Ive had this bike for a few days its my first fixed gear and im transitioning from a heavy mountain bike, this is about 20 pounds compared to my 40+ pound mountain, can throw it over my shoulder no problem and carry it. The packaging it came in is so nice well packaged they thought of everything. Only thing you have to do is put on handle bars and front wheel. I Didn't take it to a mechanic because I knew what Im doing but if you want the warranty I definitely suggest you take it to a mechanic if you dont know what you're doing. The matte black is the best low profile if you dont want to stand out. Seat is more comfortable than any other seat ive ever been on but thats my personal opinion. The pedals they come with are just standard plastic ones that are very comfortable but youll probably want something better later on. The BRAKES are the smallest things ive ever seen! (since im coming from mountain bikes) And thats a good thing! They're very powerful and responsive and have quick releases to open up a bit for when you're taking off the wheels. I know this is a Fixed gear and youll only ever need the front brakes but im keeping both on for now since im new to fixed, you can ride freewheel to get used to the feel of the bike first if it doesn't feel right. If you care about branding and stickers they actually look cool and are low profile but they're not removable incase you want them gone anyway. Thats it for now, ill add pictures when I do my review after riding it for a few months.

Excelente relación calidad/precio, el cuadro se ve y se siente muy sólido, los frenos no tan buenos, el sillín ya se lo cambie así como los pedales, pero insisto, por ese precio no se puede pedir más.Update: la bici continúa funcionando perfectamente, pensaba cambiarle las bielas y el BB pero han funcionado muy bien así que los dejé, prácticamente el único mantenimiento que le doy es ponerle aceitito a la cadena, a también le cambié los frenos.

Es una excelente bicicleta. Es muy ligera y su estructura parece muy firme. Lo único malo son los pedales de baja calidad, pero el resto de la bicicleta es excelente.Contras: La capa de pintura es muy fina, cualquier golpe en la pared y se pelará del aluminio.

Ya llevo unos 2 meses con la bicicleta, es muy estable, ligera y sobre todo luce muy bien, se me ha pinchado la llanta trasera aproximadamente 7 veces, pero eso es por las condiciones de mi ciudad.La calidad de los frenos y el sillín son regulares. Se debe tener cuidado con la pintura, no es tan fácil pero como es negro matte, se nota muy rápido si se raspa con algo.

Came with Bullhorns. Nice frame. Looks great out of the box, however, the front fork drops were a little too tight for the wheels to fit in. Had to file it down a little. Once set-up, the bike is good for what they're asking for. It will need a better drivetrain down the line.

It came with a pursuit bullhorn bars!!!!i was expecting it to have a riser handlebar like in the photo so i was planing on buying a bullhorn handlebar. and to my amazement it came with a pursuit bullhorn!!only complain would be the pedals, but overall great product for its price

Great bike for the price! My first fixie, so far so good. I'll need to pick up some fenders soon and swop out the break levers, but that's about it. I will likely put gatorskin tires on in the summer as well.

Estoy muy contento con esta bicicleta, calidad, peso y funcion mejor de lo esperado.

Muy buena relación precio calidad, quizá solo mejorar la calidad de los frenos. Pedí la 55 que parece más pequeña de lo normal quizá valdría la pena pedir una talla más grande.

Good that is good.

Me gusta su peso, te desplazas sin complicaciones, la armé yo solo, ajuste los frenos con videos de Youtube, Fantástico.

Muy ligera, buenos materiales, y fácil de armar.

muy buena bici urbana

Great bike, lightweight, great price !!

justo lo que esperaba !!!