7
votes
3answers
1k views

What is a power meter and why do I need one?

So I've been looking to become a triathlete soon and I'm hearing all this talk about power meters. Now, upon googling I found vague information which is why I came here. Exhibit A. That article gives ...
5
votes
1answer
57 views

Bike pump: what is this lump?

What is this lump in the picture and how does it work? I have another pump, which physically is the same but minus the bulge. The one in the picture seems to perform better, ie less work to reach ...
0
votes
0answers
20 views

How do self-sealing inner tubes work?

How do self-sealing inner tubes work? I understand it protects against objects up to a certain length, but do I need to still remove the offending object eventually? Or do I need to leave it in? Are ...
0
votes
0answers
18 views

Rear disc calliper won't fit, disc mount bent?

I am upgrading my MTB to disc brakes. I have disc compatible wheels and a set of Shimano M446 Postmount callipers and 160mm rotors. Front fork is a Manitou who decided to jump on the Postmount wagon ...
1
vote
3answers
75 views

Post race analysis of performance

So I did my first bicycle race this weekend. The watts graph was very varied, there was a lot of low watt (150-200w) and short bursts of +400w. I would like to know how many bursts there where, and ...
0
votes
1answer
37 views

Feet slip off flat/cleat hybrid pedals when it's wet

I have those hybrid pedals that allow for both clipping in with cleats, and riding on flat pedals with ordinary shoes. As I use my bike for cycling around the city, I mostly use the flats. What ...
-1
votes
1answer
104 views

Children's bike problem with back wheel

My daughter has sparkle and glitz 12 inch bike with stabilizers (training wheels). Since we purchased the bike every now and again the back wheel keeps spinning when she is pedaling. This seems to ...
0
votes
0answers
7 views

Wheel building for n360 + disc brakes on H Plus Son 700c, 36h

I'm working on building a couple of wheels for a road/commuter bike. This is my first wheel building endeavor. I have: 2 H Plus Son 700c, 36 hole wheels A Nuvinci n360, 2012 model A set of TRP Hylex ...
10
votes
2answers
9k views

Chain slipping off derailleur jockey (need suggestions ASAP)

Last week, I had to abandon a training ride due to my chain slipping off my rear derailleur jockey wheel. This would only happen when shifting, and most often when either shifting chainrings or ...
20
votes
10answers
4k views

How much does bike price correspond with maintenance needs?

In this question (with this answer) I asked about a commuter bike, which is to be ridden 40 km every weekday, in the city. And apparently for this scenario I can choose either of two possible kinds of ...
0
votes
1answer
13 views

How do I adjust my rear coil suspension?

I have a full suspension bike with rear spring-style suspension. I find the rear suspension too soft. How do I make it firmer?
43
votes
21answers
2k views

What is the best method to teach a young child to ride?

My daughter is just about ready to start to ride a proper bike. I am loathe to get her a bike with training wheels/stabilisers, as just about every kid I see with them just relies on them and doesn't ...
0
votes
1answer
16 views

Help on calculating spoke length

I am going to replace my bent hub on my MTB. The hub is Novatec D042SB and the rim which I am going to order is Sun Ringle Inferno 25 29er. Since my hub is not so popular there are not any default ...
1
vote
1answer
47 views

How to turn right in Japan

In Japan, how are bicycles supposed to turn right? Apparently, new rules have been decided in 2015, and there is a specific way to turn to the right at a crossroad, depending whether there are ...
2
votes
0answers
23 views

Who recognises this titanium frame?

I bought this titanium frame some time ago. No markings, only this serialnumber on the bottombracket. The 84 propably stands for 1984 as the bike was fitted with Campy's 50th Anniversary gruppo. BB is ...
7
votes
4answers
208 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 ...
0
votes
2answers
23 views

Alex CXD6 Wheelset Clincher or tubular?

The 2015 Kona Jake the Snakee has Alex CXD6 wheelset installed, but i could not find any information is it for tubular, clincher or for both tire types ? It has Challenge Grifo Comp 700x32c tires ...
0
votes
1answer
14 views

SRAM compatible 11 speed 12-25 cassette?

I'm looking for an 11 speed 12-25 cassette compatible with a SRAM drivetrain, however I don't think SRAM makes one. They list specs for their 11 speed cassettes as follows: 11-25: ...
4
votes
1answer
70 views

What is the benefit of Shimano Click'R technology?

Im looking into making the switch from platforms to clip-less and just saw SPD pedals with "Click'R" technology ( Example ) Im not sure if its worth the extra money to buy that opposed to SPD pedals ...
1
vote
1answer
82 views

Why is my electric bike 'clanking' under load?

I have a Giant Esprit Twist Power electric bike, which apart from not having nearly enough words in its name also has a problem related to the crank. When I put a lot of load through the pedals there ...
8
votes
6answers
30k views

Direct Pull (V-Brake) vs. Center Pull Cantilevers (pros and cons)

I am looking around for an old mountain bike to ride this winter (and this summer when it is wet). I was just browsing around and was curious what the difference was between Direct pull brakes: ...
2
votes
1answer
668 views

Chain vs chainless options

Could someone provide a comparison between having a bike with a chain, with a shaft drive and with a belt drive like the Gates Carbon Drive? It could be good to know who fares better in terms of low ...
1
vote
4answers
127 views

Can I use 'normal' shoes/trainers with clipless pedals?

Is it possible to use 'normal' trainers/shoes (ie, no cleat) with clipless pedals? A friend of mine mentioned he does this all the time, however I can't imagine how this would work. Surely the area ...
3
votes
3answers
249 views

Why so few mountain bikers with spandex?

I've never had clothing that was specialized for cycling, so I'm kinda n00b in that area. I am confused about the use of spandex. It's very common among roadies, for obvious reasons. It's more ...
1
vote
3answers
257 views

Why should you not just buy the chain with more links?

I have the choice of buying a 114 or a 116 link chain for the same price. Why would I not buy the longer one and shorten it? In my case my bike previously had 108 links, and assuming that was ...
0
votes
2answers
114 views

Rebound doesn't work on a Rock Shox Recon Air

On my Trek Fuel Ex6 I have a Rock Shox Recon Air fork with rebound valve. The valve has a 2,5mm allen key for adjustment, but it seems broken. The Trek Suspension Setup Guide tells me to set the ...
1
vote
0answers
52 views

Small puncture not repaired even after three attempts, patch leaks every time

I am trying to repair a puncture, it's a small one, but even after applying the glue and patch it starts leaking after a while. I have followed the procedure of scrubbing the tube and then applied the ...
4
votes
1answer
65 views

Guidelines for building tape delimited MTB courses

There are a few vacant lots around where I live and last weekend, I built a small (170m) tape delimited course. Some of the kids in the neighborhood rode in it. I also worked out in it, going full ...
4
votes
3answers
844 views

Can I buy handlebar tape in bulk

I have a couple of commuter bikes with bullhorn handlebars. When I replace the tape on them, I always have heaps left over, since the bars are much shorter overall than standard drop bars. There's ...
0
votes
2answers
70 views

What's the difference between Fulcrum Racing 3 and Fulcrum Racing S3?

I'm able to buy a set of Fulcrum Racing S3 wheels. I searched in all their on line catalogues but the wheels in the picture the guy send me are nowhere to be found. I'm thinking these are exclusively ...
0
votes
3answers
90 views

Shifter cable running beneath the bottom bracket without a sheath

I am trying to solve the neverending issue of my derailleur shifting on its own by replacing the shifter's cable and its sheath to see if it not sliding properly could be the cause of the issue. ...
1
vote
1answer
93 views

What is the hydraulic brakes expected life?

I bought a pair of hydraulic brakes (Shimano BL-M395) for my MTB. After 8 months (less than 1,000 kms), both (front/rear brake) started to leak oil thru pistons, rendering pads contaminated and the ...
0
votes
1answer
46 views

Best bike routes in Brooklyn

I live in Brooklyn, NY and in order to get in a decent 30+ mile ride (road bike) I either need to do 9 loops of Prospect Park (ugh..) or head into Manhattan, go up to the GWB, and onto 9W. Then I need ...
7
votes
5answers
1k views

How can I learn to take care of an old (70s era) road bike/get it back to working condition?

I found my mom's old road bike from the 70s tucked away in a corner of our attic. It's not in great condition and is pretty rusty. I don't know a lot about bikes from a mechanical or upkeep point of ...
1
vote
1answer
44 views

How to select double leg kickstand

I have to park my bicycle, leaning it against a low metal fence. Unfortunately the frame of the bike gets scratched. Though I try to protect it by wrapping it with polyethylene, some parts are still ...
1
vote
0answers
14 views

Yaw front derailleur compatible crankset

I recently upgraded my Cannondale CAAD10 to SRAM force 22 groupset. But I really dislike how new Force 22 BB30 crankset looks on the frame due to longer spindle, so I refused to keep it. Currently ...
1
vote
2answers
62 views

Having the fork blades aligned

I got a classic steel road bike, gazelle tour de France, and one of the fork blades was bent in the frame direction, some two centimetres, after a crash. I read here that this can be realigned, I'd ...
1
vote
2answers
45 views

Attaching kid trailer to rear triangle

Have a cube aim sl MTB and a kid trailer that's designed to attach to the rear bottom side of the rear triangle with a clamp. The problem is that the clamp is not big enough to safely attach to the ...
1
vote
2answers
104 views

to install disc brake

Hi friends I have a hercules roadeo a100 and I want to install a disc brake to it. It comes with a disc brake in front and v brake in rear. So can I install a disc brake to it and how much it costs.
0
votes
2answers
36 views

Tips for adjusting Shimano M355

I have upgraded from cheap old front cable disks brakes and rear v-brakes to Shimano hydraulic M355's front and rear. I always adjusted my old brakes for a very tight fit (to reduce dead space between ...
1
vote
2answers
129 views

Are out of date energy gels bad for you?

I have some energy gel sachets that are a few months out of date. Do they contain anything that might be dangerous after their best-before date?
0
votes
1answer
24 views

what kind of grease to use on front shocks

I have managed to release my shocks from the compressed position. The uppers look in very good nick. It has a little corrosion on the uppers. I brought a tub of pure bike eco grease ages ago and ...
0
votes
2answers
37 views

Suspension leakage

I've bought some second hand forks online, rockshox recon gold (2012 I believe) to be precise, and when they arrived there's a bit of oil on the right leg, looks as though it's come from the lock out ...
5
votes
1answer
119 views

How can I stop my toes from going numb on long rides?

I've begun trying to commute to work, which is a 70+ minute ride each way for me. I find that after about 30 minutes of riding, my toes in both feet begin to go numb. It's not a cold thing, because ...
0
votes
2answers
59 views

Rear derailleur hitting chainstay (video in the post)

I filmed a little video of the process: https://youtu.be/ejJsIWrrFTU Does anyone know how to solve the problem? Apart from attaching piece of rubber to the chainstay? It is really annoying, because ...
2
votes
3answers
1k views

Are there any cleats (for SPD-SL) that convert the pedal to a regular flat platform for regular shoes?

I have a road bike that use Shimano 105 PD-5800 SPD-SL pedals and they are wonderful when exercising. However I would like to be able to use the bike with regular shoes for more casual use of the ...
29
votes
8answers
23k views

Why don't brakes come with 'Safety Levers' any more?

It used to be very common to see bikes with dual pull brake levers (if that's even the right name) as shown below. However now it seems almost impossible to find brakes like this. Even finding a ...
1
vote
1answer
35 views

Fork stays in compressed position while locked

So I recently replaced the stock suspension forks on my Giant Cypress Hybrid with a Suntour CR9 Lock-out fork I noticed that (like my mountain bike with a Manitou fork), I can engage the lockout while ...
13
votes
8answers
1k views

Really big panniers and other baggage

Once a week I take my bike to the local supermarket to do my shopping. My panniers fill up really quickly and I always end up with bags on my handlebars (for UK people - the bags I'm talking about ...
-3
votes
0answers
46 views

Road bike tuning [on hold]

how will I know that my bike needed to tuned. Someone told me not to tuned it every month. Also, it makes noise when the speed is above 60 km , the noise comes from its front wheel. Its Honda 125 ...

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