11

No, it is not serious, you should not believe these descriptions. They just try to attract people searching various terms. There are indeed many counterfeits in these shops. When they claim so much different stuff at once it is quite certain. That does not mean that the frame would not work, but if shopping in Asia it is better to shop from brands that do ...


10

If you cannot control the rear cog's position, you can try moving the front chainring to tune the chain tension. That is, get an eccentric bottom bracket: By rotating it in the frame, the distance between rear and front cogs can be tuned. The same idea is achieved by eccentric rear hubs, e.g. White Ind. Eno: The hub choices below offer those of you ...


10

The short answer, is you generally cannot make a fixie out of a frame with vertical dropouts. Not only do you need to tension the chain, but the spacing of the axle of the bottom bracket and rear wheel varies, depending on your selection of cog and chainring tooth counts. Adjusting tooth counts will allow you to try to fine adjust the spacing, but it won't ...


9

A torque specification is not just a torque-spanner setting but a physical property. That is, there are many ways to apply the correct torque. In this case it means more or less: pull it as tight as you could. One can conclude this from the high torque value and wide torque range. To illustrate this let's find the force F you need to apply to a tool to get ...


9

Personally, I would suggest you look locally for a used bike for your project. You don't need a brand new bike and that bare-frame is not exactly cheap. Also notice that you'll need to paint the bike properly - it looks like raw steel. A single coat with a rattle-can won't be enough - you'd want multiple primers, base coats, top coats, and clear coats. Or ...


6

Focusing on this part of the question: I mean what is strange is that they say the type of the frame is : Steel Cr-Mo 4130/525/725/Tube Reynolds Columbus. What does it means to put at least 3 kind of steels and one of the best two manufacturers of frame in the world (Reynolds and Comlombus) ? (they made a mistake writing Columbus ... but I don't know if it'...


5

Sprockets are wear parts anyway so just replace. Welding would be relatively expensive and I strongly suspect it would damage the heat treatment state of the steel.


5

Single speed and a chain tensioner will work no problem In general, fixed gear in these situations is not a good idea. It could work if you use a half-link chain and choose your rear cog and front chainring so the size works perfect with the chainstay length. But this will fail over time as the chain wears out and the fit becomes loose. The issue with chain ...


5

The axle (the object on your picture) does not define which types of cogs can be used. It is the hub that rotates around that axle that determines it. The flip-flop hub of the wheel you are linking to is designed to take a single speed freewheel (used also on BMX and some single speed city bicycles) on one side and a fixed cog on another side. It is not ...


4

One solution might be to add a larger 5mm spacer on the axle, between the outside of the cone-nut and the inside of the locknut. The risks here are that your axle may suffer from bending easier because its now supporting the bike's weight further out. Also, you'll probably need a longer axle too because the track wheels are unlikely to have much spare. ...


4

The "horizontal" dropouts that are usually used with rim brakes are not completely horizontal but slanted so that adjusting chain tension moves the rim along tangent where the brake pads make contact with rim. In the video preview picture, the front-facing dropout is aligned like this. With this kind of dropouts, there is no problem with fixed gear,...


4

V-brake calipers have a radial (with respect to the wheel) adjustment range, so they can accommodate the wheel axle moving fore or aft a little. What you need to do is make sure that the placement of the new dropouts does not place the wheel axle such that the brake track on the rim is outside the range of caliper adjustment. You could do this with a simple ...


4

It looks a lot like a Masi Speciale Fixed LTD This is a picture of a 2010 model Link to the 2010 catalog Link to the Masi catalog page


4

MTB vee brakes have a different pull ratio than road caliper pull ratio. They make specific levers for each. I've used normal mtb vee levers on road bikes before and it was fine, when I used the brakes, it just felt like it stopped with small amounts of movement of the lever. So modulation wasn't great. But it worked. Alternatively, you could use "cross ...


3

Since you are buying new parts anyway why not just get the correct levers. We are talking about brakes and it is important that they work at their best not pretty good. The levers you need will be described as cantilever brake compatible. There are even models with two cable anchor points so they can be used with both canti or linear pull.


3

What is a possible fix for this problem? Loctite. Blue. I have an FSA-based SRM power meter where the self-extracting crank bolt simply will not stay properly torqued without using Loctite. That's probably pretty similar to the problems you're having. And I'm not backpedaling or skidding with that bike... I bought the SRM crankset used, so maybe it was ...


3

No, this conversion isn't possible. The 130 version has a different shell than the 120. The flanges are further apart. That's the good way for them to have done it, because if they had used the same flange spacing throughout, that's wasting lateral strength on everything but the 120. If you look at your hub you'll see that there's not really anything you can ...


3

When the torque is only specified in Newton-meters I have to consult a reference, but for foot-pounds, that's the number of pounds of pressure you'd put on a one-foot lever. For the above wrench, measure it -- I'm guessing it's about 6 inches long (probably a hair less, since you'd measure from the center of the nut, not to the end of the wrench). So you'd ...


2

There is no 1 standard square tapered bottom bracket axle length for track frames. The crankset dictates the bb axle length, it's not as varied as with crankset with gears, but there is more than one. The range is much smaller than with gears, track bb axle lengths mostly go from 103mm - 112mm (there are smaller and longer for less common cranksets). I think ...


2

It is a Gran Compe Shot Lever from Dia Compe. I have one on my Stelbel fixie, and one on my Colnago single speed. They work fantastically; however, the photo at the bottom (white handlebar tape) has the lever mounted backwards. Make sure the long arm goes across the stem.


2

I see two aspects to this question. Braking system effectiveness when functioning. Reliability of braking system. For 2. there is no comparison. Since cables brakes can be applied to both wheels, and having two brakes is always more reliable than one, cable brakes are a key component of a reliable braking system. And in fact, some bikes will have a ...


2

Rim brakes: Pro: Good stopping power, easy to use, relatively easy to modulate braking power. Contra: Brake cables can and do break. You must always have a working backup brake to ensure that you won't be caught on an unstoppable bike when your brake cable breaks. Coaster brake: Pro: Extremely fail-safe. Natural actuation. A well-greased coaster brake ...


2

If you really want to do this fixed, the way with no downside other than cost is to get a White eccentric hub. The "magic gear" setups (using a gear combination in vertical dropouts that's based on exactly ideal gear combinations for the chainstay length) are the other option. It's a little problematic because it's easy for chain stretch to bring ...


2

Top preference would be a replacement. These cogs are not expensive. A second idea - It looks symmetrical, so I'd suggest using a small file to blend any burrs or daggy bits that might catch the chain, and then just flip it over so the "miche" branding is on the opposite side. That way the wear will be on the back of the curve, and you can get ...


2

Based on the downtube logo this is a "FIX-D" brand of fixed-gear bicycle. These are low-spec bikes sold through Target and aliexpress. The frame is Steel. Someone has removed the front brake and brake lever, and the front wheel's QR lever is in a bad angle. Can't comment on the rear of the bike. The saddle on yours is from a Diamondback as well. ...


2

The pic makes it unclear but I assume flopping the ring in to the middle position has been done and not helped. First you need to decide whether 52-18 is what you want. It probably isn't. Your answer may inform which route is more economical, since buying a new ring will cost some notable percent of what a new crank would cost. Also, figure out whether the ...


1

At first I thought the chain was rubbing on the wheel, if its a new chain then it might not have been greased. Don't use wd40 if its not greased, it will wear it faster. Try White Lightning.


1

Fixed cog can't be properly installed on your wheel. Hubs intended for use with track cogs have a separate smaller reverse thread for the lockring. The reason for reverse thread is that when you apply reverse torque, it unscrews the cog but tightens the lock ring so that the cog stays in place. If you absolutely have to use track cog with this hub, there are ...


1

Very hard to tell - Masi have used a relatively "traditional" frame design. Masi made a bunch of frames with trackends for the fixed/single speed market, so theres a chance this was one-speed from new. The pedals don't have foot retention, so I'd be leaning to originally a single speed rather than fixed gear. The visible components aren't showing ...


1

Campag toolboxes used to have a tool, looked like a satin chromed steel bar, that was to be placed on the right side of the BB and swung to the left inside of the right frame end. If it didn't just brush nicely, the stays were out of whack. Triple check your BB/cog alignment. All need to be in plane. An aligned chain wheel can't ship the chain off an aligned ...


Only top voted, non community-wiki answers of a minimum length are eligible