5
votes
1answer
320 views

Number of gears for a racer

I am looking to upgrade my racer, I currently have a Bottecchia racer from the mid-80s and it has 14 gears. While looking around for newer racers I noticed that a number of them had 20 gears while ...
1
vote
2answers
5k views

Cannot fit pump nozzle properly to the presta valve of my tyre

I bought a Reebok Bike pump yesterday which is this one. I have presta valves for my Jamis Allegro Sport 2012 hybrid bike and I was trying to pump the tyres using the pump as part of my monthly ...
3
votes
1answer
496 views

Rear derailleur hits spokes when switching to largest sprocket

I accidentally ran a bungee strap through my old rear deraileur and it tore it apart. I have fitted an identical replacement but cannot work out how to adjust it so that the tension pulley does not ...
1
vote
3answers
647 views

What are the possible upgrades to a 95' Cannondale M900?

Everything is original except for saddle, tires and forks. I have a sentimental attachment to this bike but would like to bring it into the 21st century. I'm looking to make this a nice project bike ...
5
votes
1answer
516 views

Brand new disk brakes are barely stopping the bike

I just built a mountain bike with Avid BB7 brakes and Shimano V-brake levers. I used the exact same configuration on another bike, and it worked beautifully. But on this one, the brakes are just weak ...
2
votes
1answer
197 views

How can I fit this mudguard?

I thought this would be simple. The problem is that the entire brake assembly needs to be rotated to screw into a thread built-in to the fork. There's also a hex/allen hollow tube-nut at the back ...
4
votes
3answers
258 views

Bags for longer touring

I am planning to go on a 2 week touring trip in a few months and I'm looking for some bags/panniers to buy. What are your recommendations regarding the capacity of the bags (considering the length of ...
-2
votes
3answers
992 views

exploding inner tubes [closed]

Once is happenstance, twice is a coincidence... I just patched my inner tube, rode the bike a bit, parked it in the sun, and about an hour later --BOOM! the tube exploded tearing a 4" gash near the ...
1
vote
4answers
313 views

Thinking of quitting due to dangerous driving [closed]

I used to cycle a lot, and decided to try taking it back up after last year's Olympics. But it feels like almost every time I try to go out for a ride I nearly get taken out by someone passing far ...
1
vote
2answers
958 views

Bike recommendation for daily commute

I am a 6ft, 172 pound being. Just moved to boston and now that the weather is better, I am looking for a bike which I can use for my daily office commute (around 3ish mile one way). I am willing to ...
5
votes
1answer
2k views

Suspension fork - Can you leave them locked for a long time?

My bike's two years old (about 1800km on it, almost all road and bridleway) and kept in a garage. Back in November or so I locked the front suspension fork for road-riding, and over the winter ...
3
votes
1answer
368 views

Direct Mount with top and bottom swing?

I want to buy a new frame that supports Direct Mount. Now I read that Bottom Swing is preferable for hardtails. At the same time, it was also mentioned that Bottom Swing is mounted higher onto the ...
5
votes
1answer
223 views

Are there mechanical advantages and disadvantages of various front derailleur styles?

In general there are: High clamp Low clamp Braze on Top pull Bottom pull And in particular, is any of those better choice regarding reliability and durability for touring bicycle.
3
votes
1answer
102 views

DIY colouring components

I find silver, black and occasionally red are quite dull colour choices. Granted there are some components out there in more interesting colours, but the engineer in me won't let me choose the "wrong" ...
3
votes
3answers
690 views

Why is cycling on a road so much faster than cycling on a cycle path?

I normally cycle on a cycle path and I struggle to go over 10Mph on my bike for any distance. My Daily commute took me 58 to 42 minutes depending on how much I push myself. This morning and yesterday ...
1
vote
1answer
118 views

Bicycle rear hub sounding weird

My rear axle broke about 2 weeks ago, and I replaced it with a new one. I also replaced the ball bearings with new ones when I did this. The issue I am having is when I'm going with a higher speed ...
2
votes
1answer
519 views

Squeaky rear wheel when rotating

I had my bike on a stand yesterday and decided to check the rear wheel for any issues. I then noticed this squeaking noise coming from the rear hub. It happens regardless of whether I am pedalling or ...
4
votes
4answers
2k views

What happened to pumps?

I'm an old-time bike rider who commuted to grad school every day for 3 years on a bicycle. Then after a 20+-year-long hiatus, started riding again with my son. I cannot figure out the fitting on the ...
9
votes
1answer
3k views

Disabling back-pedal brake

I have a bike with the so-called back-pedal brake, but since it's for someone who's learning I think that it's more an obstacle than an advantage. Since the bike also has hand-actioned brakes, can I ...
7
votes
2answers
331 views

Improving metabolic efficiency

I'm doing road cycling, on hills, over long distances. Typically at the moment, I'll do two 30-40 mile evening rides in just under 2 hours. Generally either 50ft per mile climb or 100ft per mile ...
9
votes
3answers
320 views

Is this an abnormal rate of spoke breakage?

I just broke a spoke and this is the fourth spoke I've broken in the last 12 months. This one was very puzzling because it came at the very end of an easy 30 mile (48 km) ride. I was pedaling very ...
7
votes
2answers
294 views

How to get back on the road again?

I am from Mumbai, India. And as some of you might be knowing, it is a pretty crazy traffic on roads here. Many times, it so happens that trucks, cars etc. may force you to get off the road while you ...
4
votes
1answer
2k views

Formula to calculate Single Speed Chain Length from Chainring Size, Cog Size, and Chainstay Length

I've seen formulas to calculate chain length for multi-speed bikes, but I need something for single speed. Example: 42T Chainring 17T Cog 406mm (16") Chainstay Length The answer in this case should ...
2
votes
1answer
171 views

Rear brake rubs against the tire

I just had my rear tire replaced at an -- admittedly shady -- bike shop, and now the upper part of the rear brake is rubbing against the lower part of the tire: The yellow dust on the picture ...
1
vote
1answer
256 views

Allen Coggan Table - Formula for a best fit to time frames

I'm sure lots of people are familiar with the Allen Coggan Relative Power table that then relates your 'score' to what category rider you are. My question is that given rides/segments/hill climbs are ...
3
votes
1answer
614 views

Bike type suggestion for packed limestone trails

Sorry, for the beginner question. Where I live (Ontario, Canada), I am lucky enough to have a number of packed limestone trails (former railways). Those are fairly flat and great for bicycling. They ...
0
votes
1answer
80 views

Cycling communities organized rides in Leipzig , Germany

in my country Dudes usually gather and make some Cycling groups , they usually organize rides during weekends periodically. i'm planning to spend some time in Leipzig, Germany this summer and i know ...
2
votes
2answers
2k views

Rim width / tire section tolerance?

I have a Mavic Open Pro rim in 700 diameter. The manufacturer recommends tire widths between 19 and 28 mm : http://www.mavic.com/en/product/rims/road-triathlon/rims/Open-Pro How strict is this ...
0
votes
1answer
870 views

Brakes contacting wheel after reattaching

I removed the rear wheel (quick release) from my Trek bike to install a bike trailer hitch. After replacing the wheel, the brake pads are rubbing. I did over-tighten the wheel when I first put it ...
1
vote
1answer
96 views

Is it ok to use a 9spd link on a 10spd chain?

I accidentally broke the master link (a.k.a reusable missing link) on my 10psd KNC x-10 chain. Since I only had a SRAM 9spd replacement link, i used that to connect the chain. I rode 30 Km without any ...
7
votes
3answers
189 views

When is a child ready to switch from scooting to pedaling?

Last year, we bought a child-sized bike and removed the pedals. My three-year-old has been using it as a push bike (a.k.a. balance bike, run bike, or scooter) and learning how to balance. The plan is ...
12
votes
5answers
13k views

Is cycling better than walking to lose weight?

I want to lose weight. I commute to my office daily by walking 3 kilometers. If I buy a bicycle and use it for commuting (total 3 km daily), would it be better than walking?
3
votes
2answers
553 views

Shimano Alivio with Sora compatibility

I have Giant Defy 3 2012 and I want change handlebar from drop down to straight. I wonder if I can use Shimano Alivio M430 3-9 shifters with my front and rear Sora derailler. Thanks for advice
3
votes
2answers
342 views

Chain guard for a belt-drive bike?

So this morning I'm riding to work on my shiny new tourer, when my trouser leg gets caught in the Gates belt drive. Not good! I'd rather not go the leg-strap route if I can avoid it, which leads me ...
3
votes
2answers
3k views

Can a 10-speed mountain bike chain be used on a 10-speed road bike?

I would like to use a Shimano Deore XT Chain CN-HG94 on my road bike. Are there any differences between roadbike chains versus mountain bike chains that prohibit this? Sample Road Bike Chains: Dura ...
43
votes
17answers
8k views

How to ride to work without sweating?

I'm planning on commuting by bicycle to work in hot Montreal, though this question is probably relevant to anyone who bikes to work in a city with temperatures above 20 degrees Celsius (68 degrees ...
1
vote
2answers
462 views

What torque for caliper brakes onto carbon-alloy forks?

I've recently got a new bike with a Kinesis DC07 carbon/alloy fork. This comes with deep-drop calliper brakes (Shimano R451 Dual Pivot). The first time out I bumped one of the brakes and it twisted ...
3
votes
5answers
367 views

Is a Racing-Bike making creaking noises a sign of equipment damage?

Last Sunday I noticed that my bike makes creaking noises (similar the hull of a ship, but on bicycle scale - imagine a rat making the sound "creak"). It seems to me that this is related to stressing ...
2
votes
1answer
202 views

Continuous Peloton

Is it possible on a short enough circuit with enough riders to create a peloton that extends all the way round the circuit. Even in a single line? Lets assume the riders have a professional level of ...
1
vote
2answers
337 views

Running one wheel with clincher and one with Tubular

I have a carbon clincher wheelset and am looking to get a disc wheel, but don't want to spend the money for the clincher version. Would there be any foreseeable issue with running one wheel with a ...
7
votes
5answers
5k views

Is there anything I can do to prevent snakebites (pinch flats)?

Riding in an urban setting, I've lost two tubes in the last week to snakebites, and it's easily the most common way for me to get a flat. I've got Gatorskin treads, which help prevent standard ...
4
votes
2answers
2k views

What is the braking (stopping) distance for bicycles?

A vehicle driver must keep enough braking distance (aka stopping distance) between him/her and a vehicle in front in order to avoid collision. It depends on the driving speed. What is the braking ...
1
vote
1answer
676 views

Is it possible to date Shimano components?

I have heard that Shimano releases an updated or redesigned component line about every four years. The old technology then passes down to the less expensive product line. If this is true, theoreticaly ...
1
vote
2answers
173 views

Metallic vibration sound while cornering - hybrid/CX tires

I ride a Surly Cross Check with stock everything. When I take a corner quickly on asphalt, I hear what sounds like metal vibrating, seemingly coming from the area of my front wheel. I'm used to ...
4
votes
3answers
9k views

What is the difference between race/road and cx bikes?

The only differences I know is that road bikes are often lighter and uses different set of brakes. But what else are the main differences?
3
votes
3answers
699 views

BMX gearing - for road / commuting

I have a 2010 Haro Pro Race, which I bought for commuting and general tomfoolery. I commute on it 2 miles a day, and I want to be able to go faster by changing the current single-speed gearing ...
3
votes
1answer
174 views

Is there a reason why one's calfs would ache on a Turbo or Spinner, but not when riding on the road?

I'm not on my own on this one as at least two other people in my Spinning class suffer the same: when Spinning or on the Turbo Trainer, I can feel pressure on my calf muscles after a bit of time ...
3
votes
1answer
268 views

Grand Tours - Total Ascent (By stage, particularly the giro)

I'm looking for information on stages of grand tours, particularly the upcoming Giro. I can find details of total distance by stage, and the amount of ascent on the key climbs of a stage, but I'm ...
3
votes
5answers
3k views

A bike for city commute - disc brakes, bar-end shifters, tires

I'm planning on buying a bike for city commute. My commute to work is approximately 12km (7.5 miles) one way. I live in Vancouver which means: I'll be riding in rainy weather frequently. I'll be ...
9
votes
2answers
780 views

Will a bike stand that holds one wheel damage my bike?

I have a similar bike stand to this at home: I'm happy putting my wife's and my commuter in it but worried that it will damage the wheels of my XC bike if left in there for long periods. Can wheels ...

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