2
votes
1answer
424 views

stiff gears and chain coming off while pedalling forward (hub gear)

So I recently replaced the back wheel's tyre on my bike. Got it all fitted back on again, and the chain and everything are in place as they should be. However, changing up gears has become very stiff ...
3
votes
3answers
181 views

Exercises to Counter act muscluar imbalances

I have overdeveloped quads, which has affected my knees, what are some exercises that will help counteract this imbalance?
6
votes
4answers
1k views

Is it better to breathe through your nose or mouth when cycling?

I just watched the 'Road to Glory' documentary about Team Sky. I noticed when they were warming up on their Turbos, some of them had cotton wool up their noses. Is this because it's better to ...
2
votes
2answers
3k views

How to properly clean and lube the bearings on a sram apex bottom bracket (GXP)?

For this bottom bracket type I am not sure you can take the bearings out to lube them. How do I get grease in there. Also how do I get the old grease out? Does it even matter? I found this video ...
2
votes
2answers
294 views

What do you call the crankset system type on the Sram Apex?

I see these everywhere, but no one can come up with a consistent name for them from company to company. GXP is the closest I can come to a name for the bottom bracket. ...
4
votes
4answers
278 views

Chain slipping off a non geared bike

I have a normal ranger bike without gears, I've had this bike for quite a while now, been 8 years. But recently it's chain has started slipping off. I have maintained it well, changed the chain a ...
9
votes
4answers
5k views

What effect does head tube angle have on a bicycle?

My girlfriend and I are looking at a new bike for her. The one we're looking at has a 70 degree head tube angle while her current bike has a 70.5 degree head tube angle. Unfortunately, none of the ...
3
votes
1answer
2k views

Any way to transport kids on a folding bike?

I LOVE my Strida, but have noticed that the only way to transport kids with it is in a trailer, which seems to defeat the purpose of a compact bike. I've seen a crazy expensive Brompton bar ...
1
vote
2answers
2k views

Dahon handle post hinge loosens too quickly

I noticed that the handle post hinge on my Dahon Speed D7 now requires attention much more often than it used before. Unlike main frame hinge which remains tight for long after adjustment, this one ...
-3
votes
2answers
451 views

Optimal full-suspension design for mountain bikes? [closed]

What is the best up to now high end all-mountain full suspension design? By "best" I mean a design that balances pedaling efficiency, strength/durability, and (lateral) stiffness and weight as best as ...
1
vote
2answers
483 views

How do I take apart the axle and freehub on this bike

I have a long wheelbase recumbent built by Sun Bicycles. There are some complications with finding out what kinds of components went into the interior of the bike. Brakes and shifters have their ...
0
votes
2answers
1k views

Rear wheel stuck (not moving)

I have a Mongoose XR-150. Just brought it from Craigslist a month ago. Suddenly while biking today, the rear wheel got jammed. It just stopped moving, however hard I tried to pedal. Immediately ...
11
votes
3answers
729 views

Effective breathing for efficient cycling

It seems silly to say I don't know how to breathe, but I don't. When doing weights, I know you exhale when you do the work part of the rep. In Yoga similarly breathe out on the stretch. Rock ...
1
vote
2answers
765 views

Comparable Alternative to Messenger Bag

Hunting the internet for months for an alternative of this bag (which unfortunately isn't available for purchase anymore): http://www.alkr.com/urban-messenger.html I searched on Amazon, Ebags, ...
0
votes
4answers
192 views

Route mapping tool - INSERTING a point

I'm kind of frustrated by this, because after long time of internet searching, I found none that would satisfy my needs. The problem is that I want to HAND-DRAW my route by first clicking it's ...
4
votes
4answers
1k views

How should I store inner tubes to maximize their shelf life?

The LBS's in my area tend to have major sales around the same time once or twice a year. During this time, I can get replacement tubes at about half their normal price. I can buy several tubes, enough ...
20
votes
5answers
1k views

Spokes keep breaking - bad hub or bad build?

Background information A bit of background information (I'll try keep it brief): Last year I bought an old but unused bike, 5 speeds with internal gearing. Apparently the shop bought a lot of bikes ...
1
vote
2answers
1k views

Removing bottom bracket from 79 peugeot frame

I would like to remove the bottom bracket from an old french peugeot race frame. I believe the frame was built in 79 judging by the decals and stamp on the bb. The bottom bracket and spindle at the ...
4
votes
2answers
824 views

how come some cyclists look like they are making a 45 - 60 degree angle with their bodies and I don't?

I just wanted to ask how come some cyclists when they ride they lean in, while their arms straight, and some resemble a 45 to 60 degree angle (which looks cool by the way). I have a hybrid bike and I ...
5
votes
3answers
1k views

Unscrewing a rounded allen bolt

I need to take out my rear shock but one of the 2 allen bolts that is holding it (the upper one) has been rounded. I've been told about various ways that such a bolt can be taken out including: ...
2
votes
1answer
1k views

How many headset spacers might I need?

I am building a bike. The headset is in the head tube, and the next thing is to fit the stem and handlebar to the steerer. At this point, it seems I need some headset spacers in between the headset ...
4
votes
2answers
213 views

What's the shelf life of tublar tires?

I have a set of tubular Continental Sprinter Gatorskin (28" x 22mm) that have been sitting in the box on the floor for close to four years. They look fine, but I'm worried that they won't last long ...
5
votes
3answers
543 views

When to change winter tires for bicycles

At work, we discussed when to change to winter tires for bicycles (and cars). We assumed that temperature was the key factor and I used a program (Mathematica) to check the mean temperature in ...
4
votes
4answers
1k views

Chain skipping on some gears

I have an old cruising bike with 21 gears. A few months ago I was pedalling back home when my chain broke, and I was only able to get the chain replaced this week. After having it replaced I noticed ...
3
votes
3answers
324 views

How do I prevent neck and back pain, and recover physically/mentally on a multi-day ride?

I'm nervous about the ride and looking for some motivation, support and answers to a couple of questions. I'm a 53 year old female and I've done 75, 80 and 100 miles before but never a two day ride ...
2
votes
3answers
1k views

Resources for finding dirt roads for planning gravel grinding rides

What are good resources to use to find dirt roads, fire roads, gravel roads, or disused paved roads for planning a gravel grinder or ultracross style ride. Any particular atlases, online mapping ...
11
votes
3answers
1k views

Is it safe to ride on an unevenly bulging tyre?

Most of the tyre looks fine, true and straight but the section photographed shows bulging. The rim itself is true, is this safe to ride on?
2
votes
3answers
346 views

I unscrewed the lockring, and *both* BB cups rotated - what's going on?

I'm fixing up an old tandem, and the cup-and-cone bottom bracket at the front sounds very gritty, so I picked up my c-spanner and applied it to the lockring. With a bit of effort, left cup and ...
6
votes
3answers
979 views

Creaking bottom bracket

I have a Trek 3900 Mountain bike that had a serious creaking problem whenever I would pedal. I found that the ring that holds the Shimano sealed bearing was really loose. I tightened it up and it ...
4
votes
7answers
607 views

How would the “pros” bike this commute?

I've been putting up some pounds and have a bike gathering dust at home =D I normally commute by bus or carpool, but would like an opinion from some more seasoned bikers on how you'd tackle this ...
13
votes
4answers
853 views

How can somebody with Type I diabetes keep blood sugar levels acceptable during and after a multi-hour ride?

I recently upgraded my bike to a Merckx EMX1 and started doing some serious riding. I am riding 50–70km(30–45 miles once a week usually including a second cat climb and sometimes one or ...
2
votes
10answers
4k views

Good backpack for carrying groceries [closed]

So, I need to be able to carry 3-4 days worth of groceries for one person, about a mile from the store to home. I'm not too keen on the idea of panniers or anything else that mounts to the frame. I ...
2
votes
2answers
2k views

Deep cleaning - crank, derailleurs, hubs

I recently completed a 100 mile sportive that included a lot of riding through big puddles, fords etc.. bike got very muddy/gross and was making a lot of noise by the end of it! I gave it a quick once ...
4
votes
2answers
220 views

What brand is this handlebar stem?

I just purchased a used bike recently and I am curious to the make of my handlebar stem. Would anyone be able to identify the brand logo?
0
votes
2answers
282 views

A vintage bike collection

Do you know a collection of vintage road-bike, with pictures of their old school style and actual argus price. I just bought a Mercier and I wonder, how much it can cost nowdays...
0
votes
2answers
779 views

shaving your legs, arms, or both?

I understand why cyclists shave their legs. I shave my legs. But as of recently have felt kind of funny that my legs are smooth and my arms are hairy. Is there a reason why we don't shave our arms ...
-3
votes
4answers
354 views

Which bicycle do you recommend for a short daily city commute that can last for a solid 8-10 years? [closed]

I need a road bike for my daily commute. I live in Philadelphia and am looking on Craigslist and found a couple options. Let me know what you guys think. Feel free to suggest anything else you find ...
21
votes
7answers
2k views

Are Z-shaped cranks a good idea?

I've stumbled across this kickstarter project, which promotes an original shape for cranks: They claim a wider arc of useful push during rotation. While their main point is rendered moot by ...
-2
votes
1answer
141 views

What are some good eating habits? [closed]

I want to get myself back into road cycling. When I first bought my bike I was serious and was riding everyday 20-30 miles. I got burned out because I wasn't eating right. This time around I want to ...
8
votes
2answers
301 views

Rec for bike backpack with side zipper into main compartment

I got a used SAG Life Air Force 1 backpack from a friend, after deciding that a messenger bag was just too heavy when it was full for my one shoulder to bear. I primarily use the bag for urban ...
0
votes
2answers
140 views

Reference Request: Best practices for urban commuting [closed]

I'm thinking about commuting by bicycle for the first time. What are some resources (e.g. books, websites) I should take a look at for tips and best practices to follow. I'm looking for further ...
0
votes
1answer
181 views

Right campagolo gears slipping

I have a set of Campagolo Athena 11 levels and the right one is slipping when changing down. What is the problem and which part do I need to replace, please
2
votes
2answers
497 views

Time Trial/ Tri Aero Wheels Query

I am in constant debate with my colleague regarding the use of aero tt/triathlon wheels (82/101) for normal/general road use (fear of buckling etc?). I was wondering what peoples thoughts were on ...
1
vote
1answer
295 views

Purpose of partially filled in rear drop out

I have an old MTB frame that has the drive side rear dropout partially filled in as if it was part of the original forging of the dropout. And, I have seen this on a few other frames -- even ...
1
vote
2answers
404 views

Singlespeed Hub - Rear Axle Swap

I have two sets of wheels, both laced to surly singlespeed hubs (the older "new" hubs, not the "ultra new" hubs which seem to make this process much easier). Anyway the wheelset I like better has a ...
6
votes
2answers
2k views

MIG Welds vs Brazing for simple bike hacks

Given that frames are generally brazed, not welded and given that MIG welding will work on simple bike hacks what are the downsides of MIG welding these hacks? For example, I would like to make a ...
2
votes
4answers
243 views

Why do i have a cramp?

I think Ive been getting a cramp in my right quad. I assume its a cramp, but ive never had one before. I bike 10 miles per day 5 days per week. I always ride the same way (to and from work). On one ...
2
votes
5answers
711 views

Six speed chain on an eight speed bike

So in the shop they asked me "what chain do you need" and I said 7. They said "you could try this 6-speed, it is half the price of a 7, and we put it on 7-speeds all the time". I said "ok", only to ...
5
votes
6answers
7k views

Adjusting disk brakes after taking off the wheel

I recently took off the front wheel off of my mountain bike, and have been having considerably difficulty getting the front wheel on the right spot such that the wheel doesn't rub against the brake ...
3
votes
4answers
412 views

Cycle training to prepare for first racing season

I wish to improve as a cyclist, I have a goal that I want to start racing by next summer. I want to know what is the best start I can give myself in or order to prepare. The hard part, it's coming ...

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