0
votes
1answer
20 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 ...
0
votes
2answers
33 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 ...
0
votes
0answers
36 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
409 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 ...
3
votes
1answer
81 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
1answer
37 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 ...
1
vote
1answer
32 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) ...
1
vote
0answers
83 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
61 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 ...
0
votes
1answer
37 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
1answer
19 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
0answers
43 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
0answers
26 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
22 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
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 ...
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 ...
1
vote
3answers
147 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
1answer
34 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 ...
0
votes
1answer
42 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 ...
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?
1
vote
4answers
218 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
0answers
25 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:- ...
1
vote
1answer
53 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?
4
votes
3answers
65 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
35 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 ...
-1
votes
1answer
67 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
0answers
62 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 ...
0
votes
1answer
55 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?
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 ...
-1
votes
1answer
84 views

About join a bicycle race [closed]

I ride a normal bicycle in bad conditions about 4 km in 15 minutes. How many speed would I need to join a bicycle race?
0
votes
0answers
28 views

rear panniers attachment catching in spokes [closed]

I'm searching for a reliable set of rear panniers (attach to rack) that will not come unlatched at the bottom when riding on very bumpy roads. (I am a commuter in Chicago. I've had two ...
0
votes
0answers
69 views

Is bike fit really needed?

I'm having neck pains and muscle cramps when I go for long rides (> 90kms) . I don't know if the reason is due to big kms or is it the fit of the bike. I live in India where a bike fit costs 12000 ...
1
vote
3answers
250 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
51 views

Pros and Cons of 29 "wheels [duplicate]

I have an 29" LaPierre Hardtail. What is the difference between 29" wheels and smaller ones? I'd like to know this not only for single trails but also on the road and / or downhill trails.
1
vote
3answers
103 views

Fat Tyre Punctures

I ride a Fat Bike which is fitted with 26x4.6" tyres. I am worried about puncturing on trails in the South African bush. What can be done to mitigate this risk of puncture as tire liners and ...
2
votes
4answers
171 views

Non Removable Presta Extension

Just got a pair of tubular Vittoria Rally road tyres. They look perfect but the problem is that the valve is 42mm which is no good for my new awesome 50mm rims. Above all the valve core is not ...
0
votes
1answer
119 views

Credibility of my Bike fit

I have been an cycle enthusiast from my school days and I got a merida scultra 901 road bike recently. However I am facing difficulties while I go over 60-70kms in a single go. Though i complete a ...
0
votes
2answers
57 views

Trying to build first fixie?

So this is the first fixie bike I would have owned. I am unsure if I want a freewheel one or not so I won't have to constantly pedal. But I was wondering or seeking help for how I could build one by ...
2
votes
2answers
243 views

Can a double loop cable stand up to cable cutters?

I am curious about this, and I don't see this question anywhere on here, nor via Google. I want to know if a double loop cable can stand up to wire cutters, because they don't seem like something a ...
0
votes
0answers
27 views

Rebuilding Easton Haven Carbon Wheels

Had a rough off and many spokes in front and rear wheel are broken or badly damaged, so I'm just going to do a full spoke replacement. Does anyone either have a set of Easton Haven Carbon 26" that ...
0
votes
4answers
76 views

Lighting for xtracycle hooptie

Does anyone have any lighting suggestions for our Xtracycle hooptie? We'd like to keep it very visible (precious cargo in there) especially when viewed from the side. Was thinking about an options ...
1
vote
2answers
58 views

What kind of tires I can use with tubeless rims?

I bought a Trek FX 7.4 last summer, and now, as the conditions are getting more and more slippery, I'm thinking of getting a bit more winter-y tires. The rims are tubeless, but I'm a bit confused of ...
0
votes
1answer
69 views

Star Nut Replacement Size

A total newb, I busted the star fangled nut on my new road bike, while trying to tighten the headset. Generally speaking, how does a person know what size star-nut to use? In my case, a quarter fits ...
0
votes
2answers
114 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
46 views

Chain too wide for gap between chainring and chainring guard

I have a Seek 0 2013 and recently the chain has been stretched so far that it needed to be replaced. On the Giant site it says that this is sold with a KMC Z51 1/2" * 3/32" chain. I've since gone to ...
1
vote
3answers
102 views

Help! Tire Pressure

I have a sorta light weight 54cm fixed gear (18 pounds) and I weigh about 115 pounds. I have a set of continental ultra tires for my 622/14mm (700x23) bianchi rims with standard 20-25 tubes. The thing ...
1
vote
1answer
29 views

Prevent xtracycle hooptie rattling noise

My Xtracycle hooptie rattles around when I go over bumpy roads when I don't have a passenger. Does anyone have a suggestion on how to keep it from rattling? I did move it to the most narrow ...
0
votes
1answer
39 views

Fairings for an Upright Hybrid Bicycle?

Do front fairings have an advantage for upright bicycles? There are fairings for recumbent bicycles such as this Zipper one: I wanted to know if anybody has experienced increase in speed/reduction ...
7
votes
6answers
2k views

Mechanic says not to use top three/bottom two gears or the chain will throw

I just bought a BTwin Fit 5, all stock, fresh from the distributor, Decathlon. Took it for light pacing at the store and things seemed OK. About 100 metres out the door, I shift up to the top end of ...

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