9
votes
1answer
111 views

Why do modern mountain bike forks no longer use boots on fork stanchions?

Why do modern mountain bike forks no longer use boots on fork stanchions? Older mountain bikes used to have them on the forks, and lefty and headshocks still do. Why have these fallen out of fashion ...
3
votes
5answers
189 views

Minimum tire pressure for 20 mph (32 kph) turn

I almost wiped out on the morning commute while rounding a corner! I have 700x25mm tires and usually keep them around 90psi. What is the most you've put in your tires (psi) to insure flawless turns? ...
0
votes
1answer
71 views

What kind of gear shifter is this? Single lever

I have this old bike that I'm taking a look at (ie oiling and whatnot) for a friend. The bike is old (maybe 20 years old), with this type of a gear shifter for front derailleur: It has a single ...
-1
votes
2answers
128 views

Why Do the same size tires say they can hold different amounts of air (psi), and does that matter? [closed]

Sadly, my wonderful electra cruiser got stolen on tuesday. I am a college student with no other transportation, i need a new bike RIGHT away, the busses in my town are currently on strike and not ...
1
vote
1answer
45 views

Can the iBert safe-T-seat be safely mounted behind the seat post?

I have the iBert front-mounting child seat. I've used it previously attached to my street bike as in the below image, but between the straight bars and the shifter triggers, I had to mount it so low ...
1
vote
2answers
51 views

trouble inflating tires

I've watched several youtube videos on inflating bike tires. i have presta valves on mine. When I the top is screwed completely on it works but i'm told this is just pressurizing the inside of my ...
19
votes
5answers
4k views

Is my stopping dangerous when Idaho Stop is de facto but not legal?

I've been bike commuting in the East Bay Area of California (5mi/day, plus public transport) for a few weeks now. I recently attended an in-class safety course, where I learned the fine for not ...
2
votes
3answers
55 views

Can I secure a 12v battery to my bicycle to charge it? And then attach a 12v horn to it?

I'm from the Netherlands, so I mean a Dutch style bicycle, as in: Then I want to attach a 12 volt horn to it. I could just put it in the basket. It doesn't necessarily need to be charged while ...
0
votes
1answer
61 views

Specs for parts on Giant Defy 4 (2013) to decide on upgrades to transfer parts onto another bike

I have a 2013 Giant Defy 4 and a new Montague Urban(UK)/Crosstown(USA) folding 21" 700c. I'd like to make the Montague better for the occasional uphill commute home I do when I don't have access to a ...
0
votes
1answer
33 views

Shimano 7400 crankset

Can I use shimano 6700 chain rings on my shimano 7400 crank set? I am upgrading the drive train and would like to keep the crank if possible.
3
votes
3answers
304 views

Would Putting BMX Bike Brakes on my Road Bike be Ok?

I am a bit of a bigger guy (260lbs) and I'm not too confident with riding my bike at higher speeds just yet. Mainly because I feel as though my brakes, (Stock V brakes that came with my Specialized ...
1
vote
1answer
77 views

What steps to take to replace bike frame

I've always known my bike frame was too big for me. I got a great deal on the whole bike when I bought it seven years ago. It was an S-Works, probably from the '90s, with all Ultegra gear in great ...
3
votes
2answers
83 views

Can a headset base spacer ring be removed?

My bike currently has a headset base spacer ring (aka conical or cone spacer) installed (like the tapered ring in the picture ). Can this ring be completely removed if the steerer and spacers are ...
2
votes
1answer
73 views

Noisy drivetrain on road bike

I have a noisy drive train on my Trek road bike with Shimano 105. It's very noticeable on the big cog, and is not as bad on the small cog, but still irritating. It's just a constant whiring noise. I ...
11
votes
1answer
1k views

Is it okay to flip a stem

The stem on my bike is at roughly negative five degrees. If I were to flip it upside down, thus making it positive five degrees, might I be putting pressure on parts of it that were not designed for ...
0
votes
1answer
48 views

Spraying frame of GT Transeo

I've got a GT Transeo 1.0 bike (bought in 2011 or 2010 as best as I can remember) and I'd like to try painting the frame to get rid of some (very minor) surface rust and paint damage. I've read a ...
4
votes
2answers
114 views

Does anyone have experience with wooden saddles?

I've been looking online at a wooden road saddle and it looks pretty sweet but not sure how comfortable it's going to be... The description says it's made from maple wood and designed to flex, so it ...
5
votes
2answers
123 views

Does the valve have to be straight when replacing a tube?

I've just replaced the tube on my bike and when I pumped it the valve wasn't particularly straight as can be seen in the image below. What I'm wondering is do I need to remove the tube and ...
0
votes
0answers
108 views

anyone know what kind of frame this is?

Can anyone identify this bike frame? I'm thinking it was stolen, painted, and is being sold on a website, so I was hoping to do a search on a stolen bike database. The original color looks to be ...
0
votes
1answer
69 views

How much runout is acceptable in a disc brake rotor?

I'm trying to sort out pad dragging / noises in Avid BB-7 mechanical disc brakes and I'm wondering how much runout in the rotor is acceptable? Right now I have about 0.05 mm (measured with a Park ...
3
votes
2answers
131 views

Bicycle is harder to pedal when standing

From a few days now, when trying to pedal standing, my pedals become very rigid and it sounds like if the brakes are dragging. If I sit down again, the noise goes away and it's easy to pedal again. In ...
2
votes
0answers
68 views

Troubleshooting Noise from Avid BB-7 Road Disc Brakes

I'm trying to track down a dragging sound from some Avid BB-7 brakes on a Kona Sutra. The hub is a Shimano Alfine DH-S501 dynamo hub with an SM-RT82 Centerlock disc. The noise sounds like a dragging ...
2
votes
3answers
129 views

Remove front derailleur without breaking chain

I recently purchased a Diadora Orbita bike from SportChek. As I was riding it my front derailleur got bent and now I can't use my pedals. So, my question is, can I remove the Shimano FD-TY18 front ...
0
votes
1answer
24 views

Gears for Hero Cyclone

I have a Hero Cyclone bicycle that is a single speed. Can I add gears to it? If so, can anyone suggest me a good gear?
2
votes
2answers
51 views

Road Brifters with MTB Derailleurs

I've just bought a lovely Surly touring frame and I simply stuck all of my mountain bike components on it. That means I've retained a flat handlebar. I'd really like to stick drop bars on though and ...
20
votes
3answers
4k views

It it impolite to “informally” join or draft a group of cyclists?

On a recent Sunday ride on a country road, I was slowly overtaken by a group of (5) guys on carbon-fiber road bikes. They were "proper" road cyclists, if you know what I mean. When they passed me, I ...
6
votes
1answer
79 views

What is meant by “inches of travel”?

I am in the market for a mountain bike, and have been reading some mountain bike magazines for info. They mention particular models as having particular "inches of travel". What exactly does this ...
0
votes
2answers
71 views

Renovating bike, are there addon to make the rims look thicker? [closed]

I have an older road bike and I am looking to renovate it. The rims on my wheels are pretty thin, and I very much like the look of deeper rim wheels. Can I produce this effect without buying new ...
7
votes
3answers
103 views

How to secure and transport panniers when on foot during a bike trip

Context I would like to go on a solo two weeks bike trip in Europe (mid & east). I am planning on camping (with a 2 person tent), so will not go to any hotel. This means that I will be buying ...
3
votes
2answers
48 views

Disk brake pads too thick?

I have an old Magura Julie disk brake. It seams that new pads are too thick for the brake. I already tried 2 different types. But when I insert the new pads the gap between the pads is completely ...
1
vote
0answers
78 views

How do I repair a broken chain on my old BMX bike?

I have an old bmx and my chain broke yesterday. I bought a new chain from WalMart. It is 300 links for 1 speed but I don't know what is the bmx speed (gear); it was rusted but I fixed it up. I left ...
1
vote
1answer
37 views

What can my Shimano BR-M445 caliper be replaced with?

I have a Shimano BR-M445 disc brake caliper that has decided to give up on life, so I need a replacement. It seems like the BR-M445 is no longer produced, so are there other calipers that can replace ...
2
votes
1answer
65 views

microSHIFT on front gears, how does it work?

Firstly, I do apologise if I don't get all the terminology correctly but I hope I'm still clear. We bought a second-hand 18-speed bike that has a front gear system that I've not encountered before. ...
1
vote
1answer
51 views

How to find the cage length of a rear derailleur?

I need to replace my rear derailleur. I've been looking at a few ones on eBay, however, my issue is that the seller does not know the size of the "cage". Specifically, I have a Shimano Tiagra RD-4400 ...
1
vote
0answers
79 views

Help me ID this bike

I purchased an old bike and I can't quite find out which brand and model it is. I know it has an Aluminium Kinesis frame , which is pretty light . The bike weights about 9,5kg with the bottle holders ...
0
votes
1answer
58 views

What to look for in a (Cheap) MTB headlight for night trail riding [closed]

I'm wondering what to aspects to look for when buying a mountain bike headlight is for night riding on the trails. I have never bought one before, but I'm hoping to spend at most $50, is it possible ...
1
vote
4answers
165 views

Which option; cx bike or mtb and road bike? [closed]

I've done my research and i've narrowed it down to 2 options for me Option 1: buy a low-end cyclocross bike for $1200 or Option 2: buy a low-end road bike for $800 and a low-end mountain bike for ...
0
votes
1answer
42 views

Pedal thread gone SRAM 150/100 chainset - what can be done?

I recently bought an Eastway FB3.0 road bike (http://www.wiggle.co.uk/eastway-fb30-2014/) for commuting and the pedal thread has gone on the right hand pedal. Am I right in thinking the only solution ...
15
votes
2answers
203 views

Are MIPS helmets actually any safer than standard helmets? Independent Research?

A friend just told me about a relatively new bike helmet technology that reduces torsion (rotational) stress in a bike accident. My wife is a speech therapist (and I write speech therapy software) so ...
0
votes
0answers
63 views

SPD-SL pedals uneven wear

I have been riding my road bike for about 10k km on those pedals (shimano ultegra spd-sl) and it just so happened that the left one is now worn much more than the right one (check out photos). You ...
4
votes
1answer
55 views

Electric bike: Do I need display?

I'm planning to buy an electric bike kit. However, I don't really like adding the display for aesthetic reason. However, the display (either LED or LCD) has function on/off and low/mid/high power on ...
1
vote
2answers
108 views

23 mm combined with 25 mm tyre in racing

I met a guy who mixed 23 and 25 mm for his front and rear tyre respectively. Now thinking about it, I believe it's a pretty good idea since the rear wheel bear more proportion of the rider's weight. ...
0
votes
2answers
54 views

what is the biggest chainring I can put on my mountain bike?

I am going to do a 'gravel grind' ride with lots of elevation gain and want to be able to keep up with the cyclocross bike riders. From what I understand they have 46/36 chainrings. My mountain bike ...
-1
votes
0answers
46 views

What bike have i found i have no clue ?

Right i was on holiday in france & spotted what looks to be an old school BMX under a whole pile of old broken bikes at a flea market with MBK on the frame & stock & seat & has Oddesy ...
0
votes
0answers
31 views

Springy Rattling noise on new bike

I have recently bought a boardman pro 29er from Halfords (cycle to work). I like it and I'm enjoying riding it for the most part however there is a noise. Whenever I'm in a high gear (largest front ...
1
vote
1answer
66 views

My brakes rotate around after I tighten them and other v-brake questions

I recently purchased the long type of v-brake pads from Disco Brakes at Amazon. These are the ones with the tail. My original brakes were the simple shorter kind, installed as small ...
1
vote
0answers
62 views

Am I unscrewing my pump incorrectly?

I just bought a new mini pump (with a foot-stand and pressure gauge to get up to about 100psi), however, in order to get a good seal you have to screw the pump-head onto the valve. The issue is, ...
0
votes
1answer
60 views

exercise alternative to biking and upper body excercise [closed]

any alternative exercise to biking during when raining ? I have been fortunate enough to solve my insomnia with biking...something with it seems to connect and works well to solve my ages old problem ...
0
votes
2answers
76 views

Bike won't shift into 2 largest rear cogs (lowest gears)

I replaced the rear derailer on my bike after Schwinn sent it to me. The old one had a bent piece. I can't shift onto the largest 2 rear gears. I set the shifter to the lowest setting, but the chain ...
0
votes
1answer
46 views

pedal crank moves and tries to slip off the axle

I changed the bottom-bracket in my mountain bike two years ago, the problem was that the bolt on the crank on the non-drive side was continuously getting loose, to the point that I had to stop and ...

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