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Oct
11
comment Why no threaded headset cups?
I've been wondering the same thing. It seems to me to be needless change for change's sake -- a selling point, but actually complicating bike fitting.
Oct
10
comment Significant difference between 28C and 32C tires?
@Akshay - The max "sidewall" pressure, for a given tire design, will generally go down as width increases. But few people run their tires at the max sidewall pressure. There are 38C tires rated at 80-90 pounds, but few people will run them over 50.
Oct
10
comment Significant difference between 28C and 32C tires?
Tire pressure and tread pattern are what make the difference, not width.
Oct
10
comment Tires for 28' city bike (622x19C) to reduce rolling resistance?
Could you provide the English meanings of those terms?
Oct
10
comment Best way to patch road bike tubes
I've never used a fluid to clean the patch area, and have never had a problem. If I patch on the road (which I rarely do) I'll use something (talc, roadside dust, a bit of tissue) on the exposed glue to keep it from sticking to the tire.
Oct
10
comment Best way to patch road bike tubes
The right way to patch a tube is at home. Always carry at least one, maybe two spares, so you don't have to do the patching on the side of the road. Otherwise, I prefer the sort that come with a tube of glue. Apply it to the deflated tube. And get belted tires.
Oct
10
comment Plastic screw with ripped-off head stuck in the frame
Drill them out. Just use a small bit, so you don't muck up the threads too much. Use successively larger bits until the screw drives on through by itself or it gets thin enough that you can pick it out.
Oct
10
comment Waterproof spray or waterproof pannier cover?
Waterproofing spray is really only to keep the fabric from getting damp in a brief, light rain, and will not provide significant protection in a downpour. My current panniers have attached waterproof covers (they stow in a zippered compartment at the bottom) and have worked quite well in several prolonged rain exposures, even though they do not cover the back well.
Oct
10
comment Spreading a steel front fork
How much do you need to spread it? A steel fork should be able to be "sprung" a quarter inch or so, without the need to bend it permanently.
Oct
10
comment How to prevent wrist pain on road bikes?
An important thing is to regularly change hand position, especially when first starting with cycling. Maintaining a fixed hand/wrist position puts considerable strain on the wrists, and can also damage nerves in the hands.
Oct
10
comment Correct angle for front light?
Yeah, generally you want the headlight aimed at the ground in front of you. How far ahead depends on the brightness and "spread" of the light and road conditions, but I'd say 10 to 30 feet. (20 meters sounds like a bit much.)
Oct
9
comment Panniers or rack bags for photography equipment
It should be pointed out that you can obtain "foam rubber" in various thicknesses and densities at a fabric store.
Oct
9
comment Upgrade my Rear Cassette from 12/25t to 11/28t
Yeah, the swap would add another 4 teeth. You'd go from 35 teeth to 39. But the total capacity of that unit is 35, so something would have to give.
Oct
8
comment Crank arm snapped: what could have caused it?
If you look at the fractured edge, you can usually see a difference between the area that is freshly fractured and the area that had been fractured for some time, as the fracture "grew" to (slightly) catastrophic size. Likely the crack was already halfway across (for weeks/months) before it suddenly failed.
Oct
8
comment At what point does one need to replace a chain ring on a mountain bike?
And invest in a helmet with face shield if you're knocking teeth off elsewhere.
Oct
8
comment Why does my gear slip when going uphill / standing?
I think the point is that it's a lot cheaper to check the frame FIRST, rather than to replace all those components and THEN discover that the frame is cracked. Not only check its integrity, but whether it has somehow gotten bent. Include the frame check in the general check for bent or obviously loose/worn parts.
Oct
8
comment At what point does one need to replace a chain ring on a mountain bike?
If you use the large ring at all I'd say you should replace it when there are two adjacent teeth missing. And with missing teeth you need to replace the chain a hair earlier than normal.
Oct
7
comment Derailleur problems - rear mech slipping forward
There are a few variations of this, but generally there's a single bolt and some sort of "tang" on the derailer that intersects with a pin on the hanger, to keep the derailer from rotating forward. It sounds like maybe the bolt is worn or some such, causing it to work loose. You'll probably have to use "Loctite" on the bolt to keep it from slipping . (Be sure to use "removable" Loctite.)
Oct
6
comment Treacherous ride - top half of fork points backwards, but the bottom points forward
A classic "ran into a parked car". I've seen it several times.
Oct
5
comment What kind of bike is this?
At first glance it looks like what was known in the US as an "English racer", but then one can (sorta) see that it has a rear derailer vs a 3-speed rear hub. But it's not unlike several brands of bikes sold in the 60s and 70s (including a 1972 Raleigh bike I once owned).