1
vote
3answers
229 views

Chain skipping with new chain and freewheel

I've recently (last 6 months) begun riding again after many years away and have begun updating components on my bike (a mid 80s era Fuji). After replacing the rear wheel and freewheel I developed a ...
5
votes
2answers
114 views

Have there been designs of bikes with stepless transmission?

Today we studied about mechanical stepless drives, which appear to be used quite widely in industry machines, such as CNC lathes. The concept of varying the transmission ratio arbitrary, without ...
0
votes
5answers
77 views

can i use a 700c tire (Gatorskin 700c x23) on a 650 wheel

I am thinking of getting some Velocity Rims that are 650c but I am wondering if I will be able to use my 700x23c Gatorskin tires on them? Also what do you think about 650c wheels pros and cons. ...
0
votes
1answer
59 views

Biking gloves with finger protection

I recently fell off a roof, lost quite a bit of skin from my elbow, which broke the fall, and that made me think: if I took a fall from my bike, how would I land? I would more than likely try to use ...
1
vote
1answer
48 views

Hybrid Fat/Snow Bike

I've seen some bikes with a pugsley or similar fork and 3"+ tires on a hard tail mtb frame. -Has anyone done this them selves? -Do you really notice any flotation with only one fat tire and one ...
7
votes
7answers
765 views

Use a lock nut on a presta valve?

I've always used a lock nut with a presta valve, but I know others who don't use it and leave the valve stem to protrude through the rim hole without fastening. What, if any, are the advantages of ...
0
votes
1answer
51 views

Axle flex under load normal for freewheel hub?

When using a freewheel'd hub is it normal for the drive side of the axle to flex a little bit? I replaced the kickstand on my bike and the new one sits closer to the rear tire with about 2 mm ...
7
votes
9answers
1k views

What are good ways to dry shoes?

I ride through the winter in the Pacific North West and get soaked about every other ride. What are the best way you've found to dry your shoes? I've found that stuffing them with wadded up ...
0
votes
2answers
49 views

Shimano Sora vs higher range brake pull ratio

I've just upgraded my commuter bike (old Trek 370) to the replaced components from my main road bike (originally 09 specialized allez - new head and handle) and found the brake calipers aren't long ...
16
votes
6answers
21k views

Front suspension or full suspension mountain bike

I'm considering buying a mountain bike and have narrowed it down to two models (make and model aren't important for this question). One model is a full suspension bike (front and back), the other is ...
4
votes
1answer
601 views

Just found a vintage Sears & Roebuck 'Ted Williams' Free Spirit 3 wheeler. Can I modernize it?

It's been in my girlfriends back yard for years and I'm under the impression that it's a pretty uncommon bike because I can't find any information on it. Her stepfather spray painted a camo pattern on ...
0
votes
0answers
37 views

presta valves new to me how do I inflate [duplicate]

I wanted to know if I can use a air pump from a gas station or do I need a bicycle pump because I've never seen these valves before until now.
2
votes
2answers
419 views

Bicycle shoes for road cycling [duplicate]

I mostly used conventional sneakers for cycling and never wore bicycle shoes in my life. At this moment of my life I decided to level up a bit. I've built myself a road bike and now I'm looking into ...
5
votes
2answers
2k views

Brake callipers not long enough to allow adjustment of pads

I upgraded the standard Tektro brakes on my SE Lager to Shimano 105s. The braking performance is vastly improved. I also have Charge Plug wheels, rather than the stock wheels. However I've noticed ...
1
vote
1answer
42 views

How to remove crank arm with broken bolt on SRAM Omnium crankset

I apparently over-torqued the crank bolt and it made a loud snapping sound. Now the hex wrench just spins freely and so I can neither tighten nor loosen the bolt. How do I remove the (non-drive side) ...
0
votes
1answer
22 views

Mavic - TIME ATAC pedals compatibility

I'm using from a long time TIME pedals (ATAC). I saw that Mavic now is making pedals that looks like Time's. Do you know if they are compatible? Can I use cleats from Time (already on my shoes :) ...
0
votes
1answer
40 views

Loose axis of Shimano Deore FC-M591-S Hollowtech II

I noticed that the right arm (drive side) of the Shimano Deore FC-M591-S Hollowtech II is getting loose. The right side has the axis attached to it as shown in the image. When I take off the left ...
0
votes
0answers
72 views

What is the kind of bicycle nobody is building? [on hold]

I am planning for a startup which focuses on building bicycle (electric +smart). I want to have some advice from my fellow bike-intellect here as to what are some features in bicycle which you want ...
1
vote
0answers
105 views

Chain vs chainless options

Could someone provide a comparison between having a bike with a chain, with a shaft drive and with a belt drive like the Gates Carbon Drive? It could be good to know who fares better in terms of low ...
0
votes
0answers
28 views

Lark golden eagle

I have an old bike. I'm wondering the value. Can't find any info about it. The nameplate says Lark. The chainguard says golden eagle. It has a spring front suspension like I've never seen before. Ever ...
0
votes
0answers
51 views

How long will my bike last? [on hold]

My bike has a few problems; the wheels can't be trued much because of a worn down cone. Other than that I think the frame is okay. The headset squeaks a bit sometimes. I just purchased a new freewheel ...
0
votes
2answers
121 views

Gears randomly switching

So I have a Trek Fuel SLR 90 and whenever I ride on flat dirt roads, the back gears randomly keep switching on me. It gets really annoying to ride Please help
0
votes
2answers
63 views

Seatpost Overextension

I've been riding with my very short seat post extended well past its maximum extension line for quite a while now. Looking at the seat post itself I don't see any signs of deformation or damage other ...
1
vote
3answers
153 views

Can I drop-in a compact crank set with my current 105 groupset

I live near a lot of hills and am fairly new to biking. In my lowest gear I still can't keep up at an efficient pedal rate on the hills. I found out they sell "compact cranksets" which in addition ...
0
votes
0answers
23 views

Which 6 or 8 rims fit a Cervelo P4? [on hold]

The Cervelo P4 (2012) has got a pretty tight clearing, especially regarding the back wheel. Do any one have experience in which rims to choose that fit the best? Thanks in advance Chris
0
votes
1answer
27 views

would I be able to put new rear wheel with 12mm x 142 axle on my 2007 RM Element 70 frame?

would I be able to put new rear wheel with 12mm x 142 axle on my 2007 RM Element 70 frame in terms of dropouts compatibility?
0
votes
0answers
35 views

Calf Muscle cramps [on hold]

In recent times, I have been getting calf muscle cramps when I try to push in a higher gear ratio consistently for about 2 mins (after riding about 45-50 kms till then) on a total ride of approx ...
4
votes
3answers
70 views

Merge gpx files

How can I merge two GPX files into one? Read the above link but my gpx files do not seem to have this in them: Copy all the stuff between Open the second GPX file in a text editor. Copy all the ...
0
votes
1answer
37 views

Help me buy a bike seat post

I know that my bike has a 25.4 mm diameter seat post. So can I purchase any old 25.4 mm diameter seat post from eBay and expect it work with my existing bike seat? Here are some pictures of my ...
5
votes
5answers
4k views

What initial improvements can I make to a Schwinn Sidewinder?

I bought a Schwinn Sidewinder from Walmart last night in a desperate attempt to get some exercise. I took it home and rode intensely for an hour, it was fantastic! I may be wrong, but I see bicycles ...
1
vote
4answers
242 views

How do I stop punctures for good?

Last night I came out of work to a flat tire. This is the second time I've got a puncture with less than 100km done on a brand new set of schwalbe smart sam tires. needless to say I was quite annoyed. ...
0
votes
1answer
25 views

Front tyre size - is 1.9" a good option? [duplicate]

I have in my bike a 1.9" tyre in the front wheel and a 2.2" in the rear. Is it safe to use this tyre sizes?
0
votes
0answers
26 views

How do I reply to a question? [duplicate]

I am trying too reply to my question on merging routes/tracks but there is no reply button?? see this dropbox link fo rone of the files:- ...
4
votes
2answers
856 views

New 26“ inner tube different size to old 26” inner tube

The new 26" MTB inner tube is much bigger than my 26" wheel (and old 26" MTB inner tube). I don't understand why. How to shopcorrectly for new tube? The bike is 1990s Raleigh mountain bike. Edit: ...
1
vote
1answer
54 views

Why are tires that fit 622mm wheels called 700C [duplicate]

where does the 700 come from and what does the C stand for in 700c?
1
vote
2answers
153 views

safety of carbon fiber bonded to aluminum fork crown

I recently experienced the failure of the carbon fork on my 2001 K2 Mod3 road bike at 20 miles per hour. Yes, I was injured. My question is the bonding agent that secures the carbon fiber fork to the ...
2
votes
1answer
3k views

How do I stop my rim brakes making making a squeaking/squealing sound?

I bought a Schwinn Frontier Sport few months ago and started riding happily. After a few weeks my front rim brakes started creaking. It's so annoying in public places. My rear brake doesn't produce ...
0
votes
1answer
37 views

Specialized Phenom seat for TT

So I have raced TT's locally for a couple of years and have decided to (finally) get aerobars and am tuning the bike to fit, however, my seat at it's max tilt downwards is probably 1 degree up (see ...
10
votes
2answers
9k views

What are the benefits of external bottom brackets?

Pretty soon, I plan to replace the bottom bracket on my early 90's Sakae Litage road bike. It takes a standard, English-threaded bottom bracket. Right now I think it contains loose bearings--I was ...
0
votes
0answers
63 views

how many bike I can carry in my sedan? [closed]

I have a 4 door sedan (Holden commodore). I am planning to buy a car rack which can be attached to the rear tow bar. However, I am not quite sure How many bikes it is safe to carry using a large ...
1
vote
3answers
288 views

Does anyone sell a direct-drive recumbent with no handlebars?

This document well describes the benefits of a direct-drive recumbent. Is there any carbon-frame recumbent, commercially available, that implements all its recommendations. And what are the pros and ...
3
votes
4answers
2k views

Getting the right cockpit position. Sliding forward. What should I adjust to keep my sit bones on the seat?

I am experienced rider and I'm looking for some advice on how to adjust my cockpit position. I am a daily commuter, and do regular 40-50k rides on the weekends, and with the warmer weather will work ...
-1
votes
1answer
68 views

I need help planning my bike renovation!

I'm planning on buying this bike online and making it, well y'know, mine. And to do this, I would like to make it look like an Aristotle bike. So I'm basically am going to need new rims to start and a ...
0
votes
1answer
366 views

KMC Z8S IG or HG compatibility

I have bought a KMC Z8S chain , but it slides over the rear cassette . The model of the cassette is Shimano CS-HG30-81 , it is not worn yet , and the chain length is also perfectly calculated . The ...
2
votes
1answer
106 views

Can I replace my Shimano RX 100 with a Campagnolo group?

I just purchased a Concorde Mistral with Columbus Gara tubing and would like to transfer my Campagnolo group from an SLX frame that is too big. The Concorde frame has a front derailleur mounting ...
4
votes
1answer
2k views

How do I choose brake pads?

I use the plain self-centering side-pull cantilever brakes found on 99.9% of road bikes. (Well, it's a road bike. ;) ) I've got alloy rims. Both my current internship location and back home are ...
0
votes
1answer
58 views

Need to know the wrench size for 10.9 screw

My pedal just unscrew. It has a hexagon-headed screw with '10.9' screw label. Anybody knows what size of wrench I need for this screw?
1
vote
3answers
254 views

Legality of opening someone else's car door?

This is in the context of having just been involved in a near miss with the car. And only applies at traffic lights whereby the car is stationary very soon after the near miss. So, generally the near ...
0
votes
1answer
83 views

Shimano cleats, Exustar shoes: Which bolts to use?

I just got Exustar shoes and Shimano SPD-SL pedals with SM-SH11 cleats. Problem is, the cleat fixing bolts that were included with the cleats aren't long enough to bolt to the shoes. I'm wondering ...
0
votes
0answers
41 views

Trails in the UK [closed]

I have a hardtail bike and love to ride it. I am in early teens and though I wouldn't exactly say I am the fittest but I can easily outpace most others my age. I am looking for somewhere in the UK ...

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