All Questions

3
votes
2answers
96 views

Cyclocross Tire Pressure

I have never raced before but there is a cycloycross race a mile from my house this weekend. Course has a fast bumpy downhill. On my mountain bike with fixed carbon fork and tubeless at 40 PSI ...
12
votes
3answers
703 views

Gear to protect against hand injury in a crash

I commute to work a few miles on my bike in the city. Today someone walked out in front of me and I squeezed the brakes too hard and went over the handlebars. I suffered a mild elbow fracture ...
3
votes
1answer
116 views

First Cyclocross Race - Riding a Mountain Bike

I'm participating in my first ever bike race this weekend. It's a cyclocross race, and I'm riding a full suspension mountain bike, because I started looking into races late this season and a fully is ...
1
vote
2answers
147 views

Catastrophic failure

My rear wheel suddenly became loose in traffic today. It is completely off axis. The axle looks fine from the outside. I remember being told something about loose cones. Should I bother to repair ...
1
vote
1answer
93 views

why do left shifters switch chainrings and right shifters cogs?

Can that be changed? Is it just convention? Is there any commercial bike that comes with a left-shifter that switches cogs?
0
votes
5answers
147 views

What is the use of GPS/Elevation on Bike computers

Can any one let me know what is the exact use of GPS/Elevation on Bike computers (EDGE 500,510 or TIMEX 2.0)? I ride with a SIGMA BC 16.12 (with CADENCE) and POLAR HRM. I check my elevation using ...
-1
votes
1answer
43 views

Building a bicycle using a service [closed]

I want to build a bicycle but I'm lacking the facilities to do a paint job etc at my place. I want to use an online 'build a bike' website but one that offers a great selection o colours, accessories ...
2
votes
3answers
121 views

Carbon fibre vs aluminium for racing

I've been commuting on a mountain bike these past 3 years. Now I want to get into road bike racing. Is it worth saving up money over a few months for a carbon fibre bike? Or should I just go and buy a ...
1
vote
1answer
78 views

Decal or paint?

Can someone tell me whether the visible part of the logo on the frame is a decal or a pain directly on the frame? If it's a decal, then where can one get a custom decal with a metallic finish? If ...
0
votes
3answers
58 views

Rear shifting - Unable to shift to toughest gear

I was adjusting my rear shifting following the advice in this video: ...
1
vote
1answer
106 views

Is it possible to have a cover over your chain,cassette,derailleur and cogs to avoid regular cleaning?

i was searching online for a product online but couldn't find anything.There are a lot of people creating new stuffs on crowd-funding projects like on kickstarter. I was wondering if if it is possible ...
0
votes
0answers
56 views

My bike won't shift out of 7th gear in the back

My bike is stuck in 7th gear. The front three gears shift fine, but the back does not. It shifts fine when no one is on it, but as soon as you put weight on it, it no longer will shift.
1
vote
1answer
36 views

Can´t remove BMX stem top cap bolt (won´t loosen)

I was trying to remove the handlebar and stem of my bike in order to be replace them. The bike has got a BMX stem and the top cap bolt is spinning freely in both clock and counterclockwise. Any idea ...
3
votes
1answer
50 views

Squeaking / Chirping while pedaling [duplicate]

I have a 2009 Specialized Allez Sport C2. When pedaling (actually only under load, not when just turning the crank while it's on a stand) the bottom bracket squeaks or chirps. I first thought it was ...
0
votes
1answer
73 views

What causes the rear hanger to snap off?

I have a Specialized Allez Elite road bike, purchased brand new in June this year. So far I've covered around 300 miles in total on it. During my ride yesterday, as I was going up a slight hill, I ...
4
votes
1answer
64 views

Is it possible to serivce Specialized Brain suspension systems at home?

I like to do all my own work on my bike, and with other forks and shocks I've had, I've been able to find the necessary service manuals and specialty tools to overhaul the systems myself at the end of ...
0
votes
0answers
43 views

2015 Time Collection

I'm a usa cycling road racer and I recently won a Time ZXRS frame in a team raffle. I'm very excited, and I know this makes me sound really spoiled, but every time I've looked on the Time website I ...
0
votes
0answers
22 views

How often should I lube with Pedros Ice Wax? [duplicate]

I'm a usa cycling road racer. I just got a recommended lube Pedros Ice Wax. I ride about 100 miles a week. How often should I lube my chain with it and how often should I clean it?
2
votes
3answers
127 views

First cyclocross race - strategy

Next weekend there is a cyclocross race at a park near my house. My first organized bicycle race ever. I would like advice / links on strategy, rules, and protocol. I am over 50, in good bicycle ...
0
votes
3answers
121 views

First cyclocross race - how to choose and set up the bike

I have never raced but there is a cyclocross race at a park near me next weekend. All it said is some sand and some drop offs. I would like some advice on selecting a bike and setting it up. I ...
0
votes
1answer
79 views

Can I replace only the smallest cog on my rear cassette?

I currently have a 12-30t rear cassette which needs replacing. While I'm at it, I really want to switch to an 11 tooth to get the extra 9% in top speed. But the problem is, even the most expensive ...
2
votes
1answer
50 views

What are the safety concerns of a high vs a low mount trailer hitch?

When you google for images of (canoe & bike) you find two basic solutions to towing a canoe with a bike. A traditional axle mounted tralier is modified to have a tongue long enough to ...
3
votes
3answers
126 views

will increasing cadence ability hurt my climbing strength?

I tend to spin rather slow when I am riding. 50rpm is a comfortable rate for me to spin for as long as I want to ride. 90rpm seems to be the rate at which I expend maximum power... I can't spin this ...
1
vote
1answer
36 views

Can I use any pump to fill up shock?

So I have a Fox float shock (a standard air shock) and I was wondering if I could use a regular tire pump or do I need a special shock pump to fill it back up? Also, are there side effects of using ...
1
vote
2answers
149 views

Recovery after long ride

I biked the longest I have in my life; my previous record was one 12 mile ride, but today I went ~36 miles on my MTB. Should there be any steps I take to recover myself? Also what things should I ...
2
votes
1answer
49 views

Can lock on grips go with carbon fiber handle bars?

How prudent is it to install lock on grips onto carbon fiber mountain biking handle bars? Are there some grips that will work and some that won't?
2
votes
2answers
103 views

upgrading components on replacement?

Is it practical (or is there any reason not to) upgrade components on a bicycle when they are replaced? For instance, I've got a 10 speed cassette on a tour bike that needs to be replaced. The bike ...
0
votes
2answers
61 views

Can't remove lockring

Have been trying to get the lockring removed from my cassette so I can replace it with a spacer kit and one sprocket (singlespeed conversion). I managed to get it loose, although the wrong way - so ...
0
votes
5answers
150 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
56 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
91 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
38 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
459 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 ...
7
votes
2answers
176 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 ...
1
vote
1answer
65 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
104 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
147 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
1answer
61 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 ...
1
vote
1answer
40 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
32 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
1answer
47 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
78 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
173 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
54 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
76 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
29 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?
3
votes
5answers
374 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
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:- ...
2
votes
1answer
73 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
4answers
110 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 ...

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