15
votes
4answers
3k views

Do Kevlar Belts really offer puncture protection?

My local bicycle shop is offering "premium kevlar belt tyres" and are "extremely puncture proof" how much of this is true? Does this "kevlar belt" offer good puncture protection? What does this ...
1
vote
0answers
320 views

Does Nirve make a good bike?

I'm interested in small women's city bike and a 3-speed 2010 Nirve Wilshire just came up for sale, used. I've never heard of this company and the interwebs are producing little info. I searched for ...
8
votes
6answers
919 views

What is the reason for starting before the traffic light turns green?

I've noticed that a lot of commuters come to a complete stop at traffic lights but go before the light turns green. They start riding as soon as the light in the intersecting direction turns red. I ...
3
votes
3answers
317 views

How can I run a dynamo wire from my front hub to my dynamo light?

I have a Pashley Roadster Sovereign, and wanted to upgrade the dynamo driven headlight. Sadly, I didn't successfully use the old wire to pull the new wire through the front fork, and now I need to ...
5
votes
1answer
583 views

What bike do I have?

I have recently purchased a bicycle from a second hand shop. It seems to have all sorts of different parts. The frame however has a badge and markings of 'Kontroll' made in West Germany. Doing some ...
2
votes
1answer
315 views

What rear derailleur do I need?

I could really could do with a hand here, I'm currently restoring a old Raleigh Milk Race bike which has friction tube shifters fitted. I want to upgrade the rear derailleur but I'm not sure if I have ...
6
votes
11answers
6k views

What is a good replacement for a cable end cap?

I was adjusting the tension of my front derailleur cable and managed to pop off the cable end cap. The cable is now quite frayed at the end and I think it would be difficult to attach another cap. ...
2
votes
2answers
979 views

Can I use a SRAM PC850 chain on a 6-speed bike?

I want to buy a chain for a 6-speed bike. I know SRAM chains have the special link, meaning that no tools are needed. I've seen a very good deal on the SRAM PC850 chain, but their website lists this ...
5
votes
6answers
14k views

How can I find the right size road bike without a test ride?

I am going to buy a road bike. I am considering a Trek 1.2. I used the Competitive Cyclist Fit Calculator to find the size of bike that fits me. Inseam: 80.5 Trunk: ...
4
votes
2answers
1k views

Loud free hub suddenly become quiet

I have a fulcrum racing 5 evo which has a loud free hub (like other campy) for about 5 years now. I like the loud noise when coasting because I don't need to put a bell on the bike. On my last ride, I ...
3
votes
1answer
809 views

Life metrics for v-brake pads (time to replace, time to change)

I ride my bikes quite frequently and need to use the brakes slightly harshly (because of the traffic light changes and cars at my front) as I approach some gradients worth 40 degrees downhill. My ...
4
votes
1answer
2k views

How many ball bearings inside shimano MF-HG20 freewheel top and bottom?

help me fix the bearings in my freewheel. I need to know the number of ball bearings top and bottom in my shimano mf-hg20 freewheel, and what size are they?
8
votes
1answer
228 views

Why do deraillers require a freewheel?

I've seen fixies with internal hubs, but a non-freewheeling rear wheel with deraillers seems to be unrepresented: | Freewheel? | Derailler? | Yes | No | ...
4
votes
1answer
164 views

How to check the gear before renting a bike?

I don't own a bicycle. Whenever I go cycling, I would need to rent one. The first thing that I always check is to see if the brakes are working properly. Sometimes, I have no idea that the gear is ...
3
votes
3answers
570 views

Do tires with worn sidewalls need to be replaced?

My bike needs a bit of a tune up, particularly the tires since the back tube has a hole in it. The rims on the bike are 26"x1.5" and the current tires are 26"x2" and both have great tread, but the ...
1
vote
1answer
184 views

Suspension forks on child/youth bicycle for road ringing good?

When riding only roads and well maintained trails, does it make any sense to have a suspension fork on a children's bike (10-12 years)? My initial gut feeling is to say no as it just adds weight ...
5
votes
1answer
1k views

How to prevent the quick-release pin on the Tektro drop brake lever from rattling?

Tektro RL-340 brake levers have a quick release mechanism that, when pushed in, will lengthen the cable to allow to easily disengage the brake from the wheel/disc without needing to deflate the tire. ...
3
votes
1answer
152 views

Rim cement as a replacement for rubber cement

Can I use aluminium rim cement for patching flat tire instead of using rubber cement?
6
votes
1answer
265 views

quads feel over used while in an aero position

I typically ride on the hoods, but I've been working lately on a more aero position. When in the drops or using clip-on aero bars I find that my quads get fatigued much more than when I'm in a normal ...
11
votes
3answers
621 views

What happened? tube blew the rim?

Had a puncture today, removed the tube, patched it and made it home. Obviously since I only have a mini-pump I could not inflate it to my 8 bar usual pressure. When home, I took the wheel upstairs to ...
4
votes
5answers
913 views

How do you evaluate a chamois (padding in shorts) before buying?

Stores only allow you try out shorts with an additional layer of underwear because of the hygiene issues. While this is great for public health, it seems to make it impossible to evaluate whether a ...
3
votes
1answer
766 views

Should I remove the chain before installing new rear derailleur?

I want to put a new Sram X7 instead of killed one, should I open the chain (if I have no chain lock) or it's better to open the derailleur?
5
votes
3answers
2k views

Cost of maintenance of a roadbike

I am going to buy a bike and ride upto 1000 km or more in a month. Adding them, I think it will come to 12 k to 15 k per year on an average. I will be riding on highways, so there won't be any ...
4
votes
4answers
9k views

Should I get a performance bike or an endurance bike for 180 km rides?

I want to do the 180 km of cycling in general, that is the 2nd leg of Ironman. I don't have a bicycle, as of now. I am planning to buy a road bike (not the one used for triathlon). People ask me to ...
3
votes
1answer
139 views

Bike position - Town bike

I have found a lot of documentation on the internet on how to chose the correct riding position for a mountain bike or a road bike. The thing is that my bike doesn't fit in those classes. My bike is ...
2
votes
1answer
7k views

how to pump up schrader valve bike?

I'm quite new to bikes. I have a Schrader valve bike with deflated wheels. When I try to pump it up. I take off the protective cap, then there is a valve secured down by a nut (there is another nut ...
3
votes
2answers
852 views

Converting my bike to use quick release wheels

I have an activ folding bike designed by raleigh. I was wondering if I can swap the stock wheels for a wheel with a quick release? Or does the frame have to support it? I also read I can use a quick ...
1
vote
1answer
687 views

How do I secure a new bike outside my apartment? [duplicate]

Alright -- this question isn't so much about locking up a bicycle. What are effective, practical ways to securely keep a bike, especially if you can't take it inside? Some points or ideas that would ...
2
votes
2answers
2k views

Saddle or frame shape for painful Coccyx?

As a child I was very active, and in a weight-lifting injury I damaged my Coccyx, making it very difficult to sit in the same position for long periods of time. As such, bicycling, what once was a ...
1
vote
1answer
886 views

Is there any replacement for the chainrings of a Shimano STX crankset?

I have a Shimano STX Crankset (probably FC-MC series or similar, around 2001) with worn out chainrings (5 Arms). Is there any contemporary replacement opportunity for either the chainrings or the ...
5
votes
2answers
1k views

Are cycling shoes comfortable as everyday wear?

I'm currently traveling to work by bike. I intent to by a new sport shoes and discovered that there is such thing like special cycling shoes? My question: Are they appropriate for wearing in the ...
17
votes
7answers
4k views

What tools on a multi-tool do I actually need?

I feel like there are almost as many bike multi-tools out there as there are bikers. In a single trip to REI, I found nine different bike tools each ranging from only four to over thirty individual ...
2
votes
1answer
414 views

What is the width of Giant CR41, 32-hole rims

I'm tuning up a 2010 Giant TCX 2 which has Giant CR41, 32-hole rims as the only information I can find. There's nothing printed on the rims themselves either. Right now it's using the 700 x 35c Kenda ...
4
votes
3answers
2k views

Fixed Gear Chainring Centering

I have a fixed gear bicycle with a chain that gets periodically tight and loose as I complete a rotation of the pedals. How do I center my chainring so that the chain has even tension throughout?
2
votes
1answer
182 views

Raleigh AT20 series bottom bracket affects derailleur

I took out the bottom bracket to clean it etc taking off the pedal shafts etc - and when it came to putting it back - the front derailleur was well out of adjustment - Have I done something wrong>- ...
8
votes
1answer
200 views

Chain Lube Compatibility?

I bought the bike used, so I am not sure what chain lube was used in the past. I used Tri-flow Superior Lubricant once but may wish to experiment with other lubes in the future (Finish Line Teflon, ...
9
votes
5answers
9k views

Good Quality Road Platform Pedals?

I am trying to find good quality but not exorbitantly expensive platform pedals for a road bike. I tried Shimano SPD, but ended up concluding that for me it was more of a deathtrap. I did end up ...
1
vote
2answers
563 views

Long Quill Stem?

I picked up a used mid 1990s Serotta Colorado CSI (lugged steel) bike. It is a size 54L which in Serottas from that era means it has a 54 seat tube but a 55 top tube. The size was not intentional, it ...
3
votes
2answers
1k views

Rear derailleur and front shifter are not indexing “together”?

So my rear derailleur and front shifter have stopped working together, my shift can shift once up and then nothing. My bike has essentially turned itself into a 2 speed. The shifter is a 2300 shifter ...
11
votes
2answers
6k views

Can a chain-lock be better against cutting than a U-lock?

I'm looking for a bike lock and, in 2013, Kryptonite have a new lock, the Evolution Series 4 Mini Chain: The chain is quoted as being only 55 cm long, and 10 mm thick. Is the blue mark below a ...
1
vote
1answer
469 views

FC-M330 replacement

I have a Trek 4500 with a Shimano FC-M330 crankset. I need to replace the crankset and was hoping that someone could tell me the current replacement. I believe that I have narrowed it down to the ...
4
votes
3answers
6k views

How can I avoid thigh chafing despite already wearing cycling shorts?

About one year ago, when I first started cycling, I noticed that during long trips (60km or more) I get skin burns on the inside of my quads. That is when I decided to buy myself a nice pair of ...
3
votes
1answer
2k views

Brake cable housing too long?

I replaced the no-name brake calipers on my bike with Ultegras today. Am I correct in thinking the rear brake housing is too long and needs to be shortened? And if so, how do I determine how much to ...
3
votes
1answer
4k views

How to calculate bike stand-over height using frameset geometry and wheel radius?

While it's best to buy through fitting a bike in store, it's not always possible (discussed here). On some websites, the stand-over height of a bike may not be listed as part of the specifications. ...
-1
votes
5answers
344 views

Good locks seem awfully heavy [closed]

I am looking at buying an electric bike (possible the smart ebike) -- these are not cheap. So I began to look at locks and stuff and -- these are ridiculous! 3.5-4kg even 6kg for a chain?? How do ...
3
votes
2answers
3k views

upsweep and backsweep for mtb handlebars

Characteristics of the following bars for MTB are: • 780mm wide • 30mm rise • 5˚ up-sweep • 7˚ back-sweep I know what effects do the width and rise have on the feel and riding. But what about ...
14
votes
8answers
10k views

Is having your hands “on the hoods” of drop handlebars safe for braking?

I've never had a bike with drop handlebars, but may get one for commuting in busy London (likely a single-speed with mechanical disc brakes). This would mean riding with my hands mostly on the hoods, ...
7
votes
3answers
496 views

Evaluate hill gradient

I mostly commute and have never had trouble climbing a hill sometimes by using my lowest speeds (or close to them). How do I evaluate even roughly what grave %age I climbed? What I mean is that I ...
4
votes
5answers
1k views

Transmission (cassette/crankset) considerations for 1st road bike purchase

I currently have a touring bike, with fenders, rack, panniers, and so on. I currently run a triple crankset 28/38/48 and 9sp 11-34 cassette. I mostly commute and tour with this bike. And with a fair ...
5
votes
1answer
1k views

Buying slicks for a cross bike

The whole rim/tire size thing baffles me. I have a Specialized cross bike that has DT Swiss rims (622x 14). The tires are Tracer Sport (700 x 33). I would like to get a pair of slicks for longer road ...

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