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Mar
22
comment Is threadless a noticeable difference from threaded headset setups?
How much force are you applying to get the stem to move independently of the fork? I can't imagine that you would encounter such a force except under crash conditions. Maybe you need a new stem bolt that won't strip out so easily.
Mar
17
comment guide to correctly assemble a Walmart bike
@whatsisname Maybe if you were starting off from absolutely no tools, but judging from the fact that the OP is a trained mechanic, he could probably get his hands on a few of the basics for free. The only really specialty tools you'd need to pretty much disassemble the entire bike is a crank puller, a bottom bracket tool, a freewheel remover, and a chain whip. You could probably get all those for under $50 if you weren't picky about quality. Also, you could find a bike co-op in your area and not have to buy any tools. Regardless, it's probably a bad idea to disassemble the entire bike.
Mar
16
comment guide to correctly assemble a Walmart bike
Not sure if you can find a manual for that specific bike, but it's probably not a good idea to disassemble the entire bike and reassemble it. This will require quite a few specialized tools that you probably don't own. It's probably best to adjust the parts that you know you are having problems with. The brakes and derailleur can be fixed with very basic tools (screwdriver or hex key) which most people will have or can acquire for a very small amount. Look around on this site and others to find information how to fix specific problems. As more specific questions if you can't find answers.
Mar
13
comment Can shimano di2 be programmed to be automatically readjust shifting for different hub/wheel types?
If anybody from Shimano is reading this, it would be nice if you could interface with the shifters from your phone. Even if it required a cable and a phone with USB OTG port, I'm sure it would be appreciated. Not that I think I will ever own di2, but I'm sure the people who bought it would like a feature like this.
Mar
11
comment How to convert a commuter CX bike to an Electric bike?
Also consider that what you're looking for might be difficult. The power required to overcome drag varies relative to the cube of the velocity. Take a look at this calculator. It takes 64 watts to travel at 20 km/h, 172 watts to travel at 30 km/h and 373 watts to travel at 40 km/h. It requires 108 extra watts to go from 20 to 30, but 199 extra watts to get from 30 to 40. Traveling at an average of 35 km/h is going to be quite difficult over that distance, even with a motor. average 40 km/h is approaching TdF speeds.
Mar
11
comment How to convert a commuter CX bike to an Electric bike?
Please look up the local laws in your area. Many places limit the speed of electric bicycles. In my area it's 32 km/h. The European Union Definition states a maximum of 25 km/h. If there's a lot of hills, you may still reduce your travel time as you'll be able to go faster up the hills, but if it's mostly flats you might not save time. You might be able to go a little above the max speed without drawing attention. Talk to other cyclists in your area to see how these laws are enforced, if at all.
Mar
11
comment Why should I prioritize top tube length over stand over height on a CX bike?
One thing to consider is that the reach can be changed using a shorter or longer stem. the stand over height cannot be changed. How much difference is there in stand over height and top tube length of the smaller frame size? Some bikes only come in 3 sizes, and there's quite a gap between them. You might have to get a ridiculously long stem for smaller size to fit. Other bikes have 5 or 6 different sizes in the same range with very little difference between 2 consecutive sizes.
Mar
9
comment Which dual-platform clipless pedals allow for the least amount of movement between the pedal and sneaker
Another model worth considering is the Shimano XT 780 Trekking model.
Mar
9
comment Which dual-platform clipless pedals allow for the least amount of movement between the pedal and sneaker
The A530 definitely leaves something to be desired in the grippiness deparment. I haven't used the PD-M324 but from the looks of it, it looks quite a bit better. The thing to watch out for is that the platform side will usually be facing down on both these models due to how they are weighted. If you're going to be switching between clipless and platform, you should probably error on the side of more grip, because once you're used to clipless, every platform pedal seems to not have enough grip.
Mar
7
comment What to look for when buying cyclo-cross or road bike under 600eu/650usd?
Some cyclocross bikes also don't have much accommodation for fenders, which some would say is practically required for commuting in rain and winter. Touring and audux bikes are basically the same as cyclocross bikes except much better suited to commuting.
Mar
5
comment replacing tires and tubes
See these questions about tire sizing and tube sizes
Mar
4
comment Shifter Options for 105 3x9 upgrade
@Batman, you are right. I was looking at the 3400 level shifters, while the 3500 is the current generation. However they are both 9 speed. So 9 speed Sora exists in both thumb actuated and lever actuated downshift.
Mar
3
comment Size advice needed for Revolution Country Traveller touring bike
What seems odd is that somebody who is 5'9" would be on the smallest model. You aren't short, so I wonder what they would recommend for a short person. Based on the sizing guide it looks like you would be on the 55 cm.
Mar
3
comment Size advice needed for Revolution Country Traveller touring bike
Did you try contacting the shop to see what they have to say about that specific bike? Unless somebody on this site owns that specific bike, we probably won't be able to help you much, as the site doesn't seem to give very specific measurements of the various frame dimensions.
Mar
2
comment What is the handlebar size for an old road bike?
According to Sheldon Brown, the most likely size would be 25.4 mm. This page is a little dated though, and most road bikes will now use the 31.8 mm size. Again this should actually be something you should measure properly.
Feb
27
comment Why are chains sold in fixed lengths rather than by the meter?
I'm with @Slovakov. I always keep a few extra links in my saddle bag, and I have a chain tool with me. I tend to pack a bit more than most people I ride with, but it's good to know I'm prepared for just about anything.
Feb
26
comment Converting from square spline to external bearings, what do I need to know?
By the time you buy an entire drive train, you can often afford to replace the entire bike, or not be very far from it.
Feb
25
comment What kind of brake pads for Dia Compe centre pull brakes
Yeah, it looks like you can still get "vintage" pads. However, I'm wondering if anybody has tried something else and had any information on how other types of pad performed. Velo-Orange shows them with what looks like their basic road pads
Feb
23
comment 9x4 spoke pattern
While the spoke nipple placement seems the same in those two examples, the lacing pattern seems a bit different.
Feb
23
comment Air Pressure on wheels
Assuming x is in bar or PSI, as those are the common units used, then, having an x value of 90 would mean that the front tire is at 89 PSI, and the rear tire is at 92 PSI. You might as well just call it x, as most pumps don't even measure that accurately, as 2 psi is not going to make a huge difference. If we are talking bar, then then we have an x value of 6.2 bar (90 psi) and we have the front tire at 5.2 bar and a rear tire at 8.2 bar, which is too much of a difference to be reasonable. Also, I can't seem to get a value for x that makes sense value no matter which units I use for weight.