30

Disclaimer: I am a fixie hater. I'll try to answer this as if I was impartial. Proper road bikes (Including the Moulton) are the machines for speed, and always have been (unless you're on a velodrome). Looking at it through a speed lens, a fixie has a slight weight, aero, and drivetrain efficiency advantage over a road bike, but this usually doesn't come ...


21

You are correct that the type of puncture you're getting is caused by the rim "pinching" the inner tube. The root cause here is one of the following: pressure too low (most likely) You're not avoiding potholes carefully enough Weight is too high for the tires/terrain. This has nothing to do with fixies except perhaps that people on fixies tend to ...


20

There's not really enough information in your question to tell for sure what the problem is, so let me just list a few possible explanations that come to mind: As others have noted, your gear ratio might just be too high for you (since you say it takes a lot of effort to get going). You can take your fixie to a bike shop and have them swap the rear cog for ...


17

Who rides fixes? Roadies who have got bored with always being out the front? Maybe its someone wanting to make a statement to the "Freds" (look it up) in the group I once did a 160km ride where some guy on a MTB (with nobbiles, back in the mid 1990's steel, 26" etc) arrived home 00:04:35 behind the leading pack (About 4:10 hours). Some argued the only ...


13

A lot of mystique grows up around the regulation of many sports. The key (as Neo says) is to get to the source ... UCI regulations say Section 2: bicycles Preamble Bicycles shall comply with the spirit and principle of cycling as a sport. The spirit presupposes that cyclists will compete in competitions on an equal ...


12

There are more factors involved. Gearing being a major one - it is much easier to skid on a 38x18 compared to a 50x14 which is more like a track ratio. Other major factors include road surface, rider strength, dry/wet, tyre width, tread pattern, rubber compound and inflation. Indeed, as others have mentioned additional weight might actually make it easier ...


12

Assuming a completely smooth road and neglecting the weight of the wheels, it makes no difference: you still need to do the same amount of work. Essentially, larger wheels give you a higher gear ratio, so doubling the diameter of the wheels would mean you'd only need to turn them half as many times, so you'd only need to turn the pedals half as many times, ...


12

I've got a 2nd hand Hercules too and I've done this exact thing. Get a quality chain tool and look up some videos on Youtube about how to remove and re-link a bike chain. I pretty much winged it as I had no clue what I was doing. It took a bit of work and a lot of frustration to get the chain length right. I probably did it wrong, but it works. EDIT: ...


12

I’ve been riding mostly fixed gear for, oh, maybe ten years now. I use bmx pedals with straps. Straps You really ought to practice getting in and out of them until it becomes second nature. Having problems getting clipped in or getting your foot through the strap means you won’t have a rear brake (not ideal). Having problems getting out means you end up ...


11

If you have brakes, then a fixie is no more dangerous than a single speed once you get accustomed to not being able to coast. Simply put, on a fixie, if the bike is moving, you must be pedaling. Take it easy at first and you will adapt to this quickly. I would recommend spending a bit of time where there isn't other bikers/pedestrians when you first ride as ...


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

By "non-drive" I assume you mean the left side. This is more apt to come loose than the right because of "precession" -- most crank bolts are right-hand thread on both sides, but the motion of the crank arm relative to the shaft tends to loosen the bolt on the left side, whereas it tends to tighten the bolt on the right side. But if this is occurring it's ...


10

This can be a fairly common occurrence with a fixed wheel bike. It may depend on a few different things, ie what sort of nuts you are using, how tight they are, what style of dropouts, and what the dropouts are made of. A different sort of nuts may help. eg something with serrated nuts or washers could grip better. Also you may be able to tighten the nuts ...


10

You may want to check your chain tension too. This answer has a lot of information you could use: How tight should a fixie's chain be?


10

If the tension is too high, the drivetrain will bind. If it is too low, the chain will drop (which is dangerous on a fixie, since it can catch and lock up the rear wheel relatively easily). You basically want the highest tension such that the drivetrain doesn't bind. See Sheldon Brown on how to set chain tension properly.


10

It doesn't make much sense to insist on one thing being the opposite of another, so let's just focus on what these things are, and you can decide for yourself what, if anything, is "opposite" of what. A fixed-gear bicycle is one in which the rear sprocket is mounted rigidly to the rear wheel, so they can only rotate at the same speed as each other. A ...


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 ...


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 ...


9

If you have brakes, make sure they're not dragging on the wheels. Also, make sure (if you have quick release) that you haven't tightened the wheels in too much. Fixed gear bikes are not easy -- they're primarily fashion statements at this point, and fashion statements often are not comfortable. You're stuck with one gear combination, and you can't ...


9

I know there are a few answers here but they don't address the tonus solid or tubless. Here is you problem: I don't know exactly the amount of pressure, but always that I inflate the tires, are really "tight" you could say. "Tight" is not good enough. Check pressure without a gauge. Get a real pressure gauge. They are not expensive and inflate ...


9

I think this is being over-thought. Aerowheels on messenger rigs have nothing to do with performance, quicker locking ability etc. etc. It’s just the new generation mimicking the older generation, trying to be cool. When I was a messenger, many of us were pursuing racing careers. The messenger gigs were essentially poor man’s training, and a steady source ...


9

Technically yes, economically no. You obviously need to obtain a multi sprocket cassette, rear derailleur, shifter, and cable and housing. Additionally you need: Singlespeed frames have dropouts designed to provide a mechanism for adjusting chain tension by moving the rear hub, so you would need dropout adapters to fit a rear derailleur. Single speed ...


9

There is a Sturmey-Archer solution for you: S3X Silver Just to copy the information available on their page: Silver 3 Speed Fixed Gear Rear Hub FEATURES 3-Speed fixed gear with gear ratio of 160% Gear steps of 20% and 33% Threaded driver compatible for non-fixed 3-speed conversion with standard single speed freewheel 6061 Aluminium hub shell Available ...


9

If your bike has slotted dropouts and a rear wheel secured with axle nuts (which Poster's answer implies you have) you can do a single speed conversion without the need for a chain tensioner device. The derailleur can be removed, chain shortened and tensioned properly by adjusting the position of the rear wheel. The chain should be able to move 0.5 inch up ...


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 ...


8

It's almost certainly a Gran Compe SHOT LEVER two handle brake lever. This description matches quite well and there's some comments on Bike Forums. Simply, both levers operate the same brake, but on a narrow bar where you don't have room for two levers for two brakes it's a good compromise.


8

You can buy a flip hub rear wheel where one side is fixed, the other free (Some bikes even come with them). You just take the wheel off, flip sides and put it back on. Brakes will depend on the frame but most frames allow for the installation of brakes. For the rear brake, you'll just have run full cable housing along the frame with either wire ties or cable ...


8

For context, I have been doing group rides for about 20 years now, raced at the cat 1/2 level for a good portion of that, and had a fixed gear obsession off and on for many years too. Riding fixed is an interesting challenge, but it is most certainly not an out and out advantage. The short of it is that your 55 kph fellow is likely a strong rider, who also ...


8

You can just use the freewheel on the large thread on the fixed side. It's the same size, and just as durable as the freewheel side, for normal people. So just unscrew the lockring and cog, and put on a standard freewheel of your choice. Did it as a bike messenger, and it still holds to this day. Happy riding!


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