All Questions

4
votes
3answers
2k views

how to repair large holes in inner tubes

I find that any hole, cut or tear larger than a pinprick is impossible to repair with normal patches because they are too soft. Even a 2-3mm slit will cause the repair patch to balloon out and burst ...
1
vote
2answers
183 views

installing brand new cartridge brakes, something seems fishy

So I am installing a brand new cartridge brake pad assembly on my mountain bike. I noticed that the brakes have a left and right written on them so i install them properly. What seems fishy to me is ...
2
votes
1answer
62 views

Are most bike hitches universal?

I'm trying to sell a 4-bike hitch on craigslist. One thing I'm unsure of is whether or not it's tailored to universally fit on all cars. I'm worried because if it's too specific, a few people who ...
6
votes
2answers
2k views

How often should I change brake cables and housing?

Seems like every year towards the end of cyclocross racing my brake cables start to get 'sticky'. The STI shifter is fine for changing gears, but when pulling on brakes it feels like I'm breaking ...
0
votes
2answers
205 views

Which brake posts do I need?

I have a Schwinn Rocket mountain bike with front and rear V-brakes. While removing the rear brakes to be replaced with higher quality ones, I managed to twist one of the brake posts out of the frame ...
1
vote
1answer
604 views

Diamondback Sorrento for first starter bike? [closed]

I'm looking to get my first bike since high school. I'm wanting to do paved roads but mostly light trails (no jumps, rocks etc., but want it to be sturdy if I go off-road). Since this is my first ...
6
votes
2answers
1k views

Tire slips off the rim when inflated to 8bar

I bought new wheels for my roadbike (shimano wh-rs80 which have c24 alu/carbon rims). I was mounting tires on them yesterday and inflated them to 8 bar (~116 psi). After a few moments (30 seconds or ...
5
votes
1answer
797 views

Any experience about radially-laced hub flanges actually breaking?

Most hub manufacturers forbid lacing spokes radially, mostly because there is less material in the radial direction away from a flange hole than in the standard 3-cross, tangential lacing. (UPDATE: ...
6
votes
1answer
4k views

Upgrading wheels on a vintage Peugeot Frame

OK so I have a Peugeot Galibier bike that consists of a Reynolds 301 steel frame. A while back the original derailer gave up the ghost while riding, bending the rear-wheel spokes in the process. I ...
9
votes
4answers
416 views

How do you lock your recumbent?

I have a pair of recumbents and I have difficulties locking them safely when I have to park them in the street for long period of time. The conventional wisdom is to use a U-lock to attach the frame ...
11
votes
7answers
2k views

Is it possible to glue or patch tire sidewalls?

This morning I discovered that my commuter folding bike had a bad flat tire, and I ran out to buy a new tube, no problem. I didn't notice until after I'd changed the tube that the tire sidewall was ...
3
votes
1answer
189 views

Help me to attach inner ring

I have cranks with 4 holes for outer and middle rings attachment. There are no holed for inner ring attachment. On my other bikes crankset middlering has 8 holes 4 for cranks and 4 for inner ring. I ...
1
vote
2answers
2k views

Buying from AliExpress

I've notice that the business to business site AliBaba and it's more consumer friendly AliExpress website have a number of bike components for sale. They tend to be complete component groupsets and ...
0
votes
2answers
219 views

Fine tuning forks

I've been riding a new set of air forks on a hard tail for a couple of weeks and have decided they're a bit too hard without any preload (riding xc). They were pumped to roughly the setting for my ...
3
votes
2answers
4k views

Installing a rigid fork on a commuter MTB

Motivation: This answer says that installing a rigid fork on a frame, designed for a suspension, changes the geometry. Most answers to my question about rusted-out suspension recommend installing ...
8
votes
1answer
234 views

How far off a chain line can I go?

I'm struggling to find a replace crank set to replace the SR Suntour set that came on my bike. The chain rings were riveted together so on bending one I had to replace the set. There's very few 7 ...
4
votes
7answers
915 views

Bicycle for 2 x 30mins commute

I plan to use my bicycle 5 days a week to get to work and back, approximately 30 minutes(~6 miles /10 km) one way, mostly good/ok roads but with some bumps here and there. Should I care about cx ...
3
votes
1answer
1k views

Is it possible to replace a 1 1/8 steering tube with a 1"?

I have a 94 Giant ATX. Threaded 1 inch steeering tube. I need a shorter stem, and would also like to install a suspension fork. Is it doable? Could I take a modern suspension fork, heat the crown, ...
9
votes
4answers
940 views

What would cause variable air resistance on a day with no wind?

I commute to work regularly. I find that on some days when there's no perceivable wind, I feel like there's almost no air resistance at all and it's so easy to ride at speed. It's also relatively ...
2
votes
2answers
2k views

Alternative Firmware for Garmin Edge 500

I'm using a Garmin Edge 500 cycle computer. For most parts I'm quite happy with it. Besides the issue of it not finding GPS from time to time there is one thing which really drives me crazy: When ...
9
votes
5answers
4k views

Affordable security nuts and bolts [closed]

I don't ride particularly fancy bikes, but I do ride in New York City, so I'm interested in securing the components on my bikes without using a ton of locks. Most security bolts products cost a bunch ...
5
votes
3answers
980 views

Clicking handlebar

Over the last couple of months I've noticed a clicking (well, kinda a clicking, kinda a clicking metallic twang) coming from my handlebars when I pull from side to side - usually when I take off from ...
4
votes
1answer
1k views

How to mount SRAM snaplock?

I am trying to join PC-1 SRAM chain, it has such snaplock: And the problem is, the distance between holes is slightly less (IMHO) than distance between the pins. Every hole on its own fits any pin, ...
2
votes
1answer
2k views

my chain is skipping on my single speed

The chain keeps wanting to load towards the right hand side of the cog no matter how I orientate the chain. This causes painful skipping. Do the marks have anything to do with it? I have a ...
0
votes
2answers
442 views

FSA Gossamer Crank Spider cracked

I've got an FSA Gossamer pro MegaExo compact crank set. Lately, while tightening the bolts on the crank spider, it cracked (see picture). I know FSA has recalled the left crank because it turned out ...
-4
votes
2answers
262 views

Helmet Camera pros and Cons [closed]

I'm considering buying a helmet camera for my commue - what are the pros and cons of a helmet camera that I should know about?
0
votes
2answers
352 views

Extending integrated carbon seat tube

Can I just cut the carbon seat tube, cut a vertical slot for compression and use a conventional seat clamp to hold a seat post in it?
10
votes
1answer
537 views

What's this? Photo of bicycle with pedals by the rear wheel

I just stumbled upon this photo of what appears to be a reasonably normal citybike, except it looks like it has a second set of pedals at the rear wheel. source Anybody knows what it is?
5
votes
4answers
305 views

Social network for bike users

Does a social network exists for bicycle users? I'm working on a website that caters bikers who want to discover some parts of France, and I'd like to allow bikers to share their experience. I could ...
18
votes
7answers
1k views

What are some alternatives to fruitlessly ringing my bell at a motorist?

I doubt that motor-vehicle drivers can hear the "ding" sound that a bicycle bell makes. What are some better alternatives?
3
votes
3answers
3k views

How much faster can i go after moving from 2x10 to a 3x10 gear setup?

My 26" mountain bike currently has a 2x10 gear setup with SRAM components: a SRAM S-1250 crank with 38/24 chainrings, and a SRAM PG-1030, 10-speed, 11-36t cassette. I feel that when riding on ...
2
votes
1answer
230 views

What kind of panniers is this tubus rack flange for?

I was bolting on my Tubus Nova front rack and noticed that there were bolt holes on the bottom of it, and got to wondering what they are for. The instructions are mostly in pictures and just show ...
-2
votes
2answers
167 views

A famous cycling Race, Place or Climb beginning with the letter “D” [closed]

I'm trying to think of either a famous cycling town, race or climb that begins with the letter "D" but I'm having problems coming up with any and google isn't much help either. So I thought I'd open ...
4
votes
1answer
615 views

Campagnolo 11 speed crank with 10 speed running gear

Hi currently have an older 10 speed Campagnolo Record group set with 52/39 cranks. I would like to get a compact group set. I can't get an equivalent 10 speed compact cranks now but I can get an 11 ...
4
votes
6answers
731 views

How to handle an attempted bike theft [closed]

TLDR; I chased down a bike thief and caught her. Turns out she's a juvenile. She claims she mistook the bike for her own. The police say if we press charges, nothing will likely come of it because ...
2
votes
4answers
606 views

modernizing shifters

I want to replace my old lever shifters (Shimano 515) with something a bit more modern. Can I do this without replacing the front and rear derailleurs. And which shifter would be a simple, and or ...
2
votes
2answers
320 views

Joe Breeze HiteRite altenative… ideas before I get hacking!

I think the old HiteRite seat dropper springs are excellent for cost and simplicity, but of course they are like hen's teeth now. I've been looking at torsion spring suppliers and adapting seat ...
11
votes
7answers
2k views

Are today's bikes “better” than a few decades ago?

I'm looking to buy a road bike for commuting. There is a guy near me who finds older road bikes (e.g. from the 80's) and fixes them up. Are there downsides to getting an older bike (assuming it's had ...
7
votes
3answers
781 views

Does anyone make a split seat clamp?

I built an 'Urban Mountain Bike' and I sometimes like to take it off drops. Accordingly, I cut the 'nub' that sticks up above the top tube so that the seat can be removed without a scary open pipe ...
3
votes
1answer
338 views

Anyone know the pull ratios of Zee 10sp and XT 9sp Mechs?

I'm putting a bike together from a load of spares and I'm having difficulty getting a shifter and derailleer to play well. I think the problem is the Zee mech. Does anyone know the pitch/pull ratio in ...
12
votes
4answers
739 views

Minimal effort chain cleaning

One of the main reasons I eventually give up my bicycle commute in winter is that keeping my bike -mainly the drivetrain- clean despite all the rain/dirt/salt/hail/snow becomes too much of a time ...
4
votes
2answers
350 views

Which brake is most expendable?

I'm thinking of removing a brake(front or back) to reduce weight and simplify my bike. Which brake is most expendable? Its your average fixie road bike.
5
votes
3answers
450 views

Stop SPD shoes from grinding

I have a pair of Chrome Midway Pro SPD cycling shoes. These look like sneakers, but have a cleat mount embedded in them. Mine have worn down a bit and now the cleat crunches against the ground all ...
6
votes
1answer
2k views

Picking spare inner tube size

My daily rider is a Schwinn MTB with 26" wheels/tires. Specifically the tire size is 26x47/52. On the inner tube there's a label that reads 26 x 1.90-2.125. I'd like to purchase a few spare tubes in ...
4
votes
1answer
1k views

upgrading an old bike gears and shifter

I don't have a whole lot of knowledge on this, but here goes. I have an old Murray Ultra mountain bike (prob. 15 yrs.+). It is a 15 speed bike, with a 5 speed freewheel. The whole Shimano system is ...
6
votes
5answers
1k views

How do Mini V-brakes compare to cantilever brakes for Cyclocross bikes?

I've got a surly cross check with straight bars, v-brakes, and mountain shifters. I was considering a switch to a drop bar setup for cyclocross racing so I have an alternative to my single speed cross ...
1
vote
1answer
623 views

front derailleur slipping?

I recently started to have a problem where the chain randomly goes from the large front gear to the smaller one. Ive been trying to work out the reason for this and would like some input on the more ...
9
votes
5answers
1k views

Do I need a new chain after 1300 miles?

I have a Boardman Airpro and probably need a new chain having done about 1,300 miles with it. The bike is used for leisure and commuting and therefore goes through all weathers. I also keep the ...
1
vote
1answer
3k views

Sora front derailleur set up

I'm trying to get my front derailleur to stop rubbing in the high gears, smallest sprockets. To do this I am attempting to follow this guide by shimano: ...
13
votes
4answers
1k views

How to avoid sore nipples while riding

I have a recurrent problem when riding in high humidity climate, either with hot or cool weather: after some hours riding, my nipples (in the chest, not in the wheel :o) get very sore from friction ...

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