2
votes
3answers
77 views

Tubular tire on hooked rim

I just bought a new (second-hand) bike (Orbea Asphalt sport) and I was looking at the tire and found out it was a tubular tire, a Continental Grand Prix, but on the sides you can read 'only mount on a ...
0
votes
1answer
64 views

When i pull my brake handle the mechanical caliper will grab then release

My rear brakes will grab a little then release all together. I had tightened by cable at the brake handle so I loosened it but it still does the same. It is a Trek mechanical disk brake.
3
votes
3answers
222 views

What's this mark on my chainstay?

I was cleaning my road bike (cannondale supersix evo) and noticed a marking on my chainstay and I'm not sure what it is. Scratching it is a little rough compared to the carbon around it. This was not ...
1
vote
1answer
46 views

Upgrading Cube Aim 29 2013

I'm thinking about upgrading my bike Cube Aim 29 2013. Current configuration described here. The bike is completely ok for short rides, but for longer rides doesn't feel comfortable. So I'm going to ...
3
votes
2answers
362 views

What is the best way to track you mileage, routes and calories burned?

Recently I got a new cyclocross bike and now I am daily commuting around 25km (not much, but daily) and I am trying to calculate my diet, calories etc. Now I am wondering if there is a good device ...
0
votes
1answer
62 views

Time to replace chainring?

I ran a squeaky chain for a while on my bike and subsequently destroyed the chain and the cassette. Both were swapped out at the exact same time for a new chain and cassette. Now I am afraid that ...
2
votes
1answer
98 views

Presta valve top screw missing

I am new to bikes and I realized the back tire valve is missing the top part of the valve , I inflated it but when I unscrew the pump it completely deflates. Can I buy that "screw" or I have to ...
2
votes
1answer
36 views

Double crank to single?

I just wanna know if I can take off one of the chainrings for this crankset before I buy it off craigslist. Thanks!! enter image description here
3
votes
2answers
104 views

Should I drink more water the day before a tough ride?

A town near my home has a (moderately hilly) 50-mile bike ride in the summer every year. Last year on the ride, someone told me I should have been drinking significantly more water the day before to ...
2
votes
2answers
111 views

I don't want to be the next Eddy Merckx; Is competitive cycling right for me?

I've been toying with the idea of joining competitive amateur (road) cycling for a while, but am unsure as to if the sport is right for me: I'm in very good shape and enjoy "basic" road cycling as ...
0
votes
1answer
62 views

Doing track stand while sitting?

I have been trying to do "track stands" while sitting down. Standing up makes it harder to balance and doesnt feel right. Is it possible to do a track stand while sitting down? Should I just stop ...
4
votes
4answers
371 views

Grabbing the attention of the person ahead of you while bicycling

Normally you let the bicyclist/walker/jogger ahead of you know that you are about to pass them by shouting "passing" or even by just ringing the bell on your bike. This is done as a courtesy since ...
2
votes
2answers
67 views

Finding a single speed kit for an old campagnolo from 1997 with screw on freehub

I have an old Campagnolo from 1997 that I want to turn into an single speed. My problem is finding a kit that will fit the freehub. The outer diameter of this freehub including teeth is 34 mm, but ...
0
votes
1answer
50 views

Mongoose Threshold 2nd hand

The front quick release lever of my Mongoose Threshold is missing or broken. I don't know the year of the bike and do not know how to determine it. There is a sticker that says ATB4130, another one ...
1
vote
4answers
115 views

Electronic bike keeps getting flat tire on the back

A month ago, I got my first flat tire on the back tire on my electronic bike and I have fixed it, it was a Nail. Yesterday I got it again, it was a hole in the whole tire, so I changed the tire and ...
2
votes
1answer
94 views

Can pedals not fit the crankset?

I just ordered and received my bike with FSA Tempo CK-200 crankset and Shimano Saint MX80 pedals (really good deal). Just received and it seems that they do not fit with crankset! The spindle on ...
1
vote
2answers
108 views

How can I assess my torque wrench?

I have owned a dynamometric wrench for two years now, and I got it second-hand in the first place. I fear that relying on its indication could be even less accurate than tightening by intuition. For ...
0
votes
0answers
59 views

Is a long, high angle stem safe to use with a carbon steerer?

I purchased a hardly used road bike someone else had built up for a deal a few weeks ago, and am a bit disappointed with the fit - it's fine for rides less than a couple hours, but too aggressive for ...
0
votes
1answer
118 views

Is it worth buying a RFLKT+ or is the RFLKT good enough?

Looking at Amazon, the Wahoo RFLKT is half the price of the Wahoo RFLKT+. What practical benefits would I actually miss out on if I just went with the Wahoo RFLKT? Any pros and cons of the two ...
1
vote
2answers
61 views

Inner tube problem [closed]

I ride on and off road on my MTB and most time I've had problems with those little dry spiky things from the bushes(sorry I don't know what they're called). I've had 2 flat tires so far and it's ...
0
votes
0answers
61 views

Small concavities on rims

Recently bought a pair of used zipp 808 clinchers and was a bit disappointed when after a closer look discovered a couple of small concavities (something like 1mm in diameter) on outer side of the ...
3
votes
4answers
846 views

Are older road bike parts compatible with newer standards? How do older and newer bikes match up performance wise?

I'm a big mountain biker and looking to get into road biking. However, I don't want to drop $1,500 on a new or relatively new road bike without being sure I'd want to stick with it. Anyway, I found ...
1
vote
3answers
179 views

(racer) Standard vs compact crankset: Increased leverage for same gear ratios true?

I'm a road and mtb regional racer about to have a go at my first road endurance nationals very soon. I'd like some educated scientifically validated answer on a matter that has been on my mind ever ...
0
votes
0answers
62 views

I have a few questions about frame repair, seat adjustments, and rims.

My bike is a Trek 1100 Aluminum Frame My bike has a few dings and scratched in the frame, and I want to get rid of them. So I was thinking I could get a powder coat or something ...
1
vote
1answer
77 views

Can I use a Brompton bike with a trailer like the Thule Chariot Cougar?

I wonder if I can use a Brompton bike with a trailer like the Thule Chariot Cougar? It uses the so called Thule Axle Mount and I wonder if it is compatible to the bike. At this point, it is just ...
1
vote
2answers
85 views

What gears should I go for?

I have a Trek road bike (although you might call it a hybrid since it has straight handlebars. I do about 3,000 miles per year on it for general health reasons (up to 30 miles at a time and averaging ...
1
vote
2answers
59 views

High speed electric-assisted bicycles [closed]

This question is about electric bicycle conversion kits. There are federal laws, state and municipal laws governing the use of e-bikes in the US. Most of them say, no more that 1000W, no faster than ...
1
vote
1answer
86 views

Computer Light For Nighttime Riding

I use a Wahoo RFLKT+ computer. It has a built in backlight for night riding, but to conserve the battery the light times out after a while (30 second default). Since I have a hub generator, I'd like ...
0
votes
1answer
61 views

How to carry Xtracycle by car?

What is the best way to mount an Xtracycle to the roof of your car? Xtracycle has a few suggestions particilary a Thule or RockyMounts Tandem rack. We have a Mazda CX-9 with factory cross bars. The ...
3
votes
2answers
123 views

What kind of grease is that?

So I just managed to remove the fork from the old frame I'm renovating. In the headset bearings, the grease looks odd! See these tiny metal balls? At least it looks like that... Is that on purpose, ...
3
votes
3answers
359 views

Making a Cannondale BadBoy ride softer

I have a Cannondale BadBoy with slick tyres, no suspension etc. On roads the ride is fine, but I do less of that these days and more along tracks (e.g. unmaintained paths, towpaths etc.). On ...
1
vote
0answers
65 views

Replacing crankset on early-'70s Motobecane 10-speed

I need a replacement crankset for my Motobecane Nomade 10-speed road bike (early '70s model), but am not quite sure what I even have at the moment and, once I know what I can use to replace it with, I ...
1
vote
1answer
59 views

What should I look for in a cyclo cross bike

This will be my first cyclo cross bike and I am already using the same techniques with my mtb. My question is what should I look for in it. Since the country I live in does not have any official brand ...
3
votes
2answers
142 views

How to identify lead paint?

I'm starting renovation work on an old bicycle. One of the things I want to do is a new paint job. I guess before that I'll need to sand the current paint off the frame. So I bought sandpaper. On the ...
1
vote
1answer
68 views

Shimano sora shifter no longer shifts

On my commute yesterday, I noticed that my right shifter was no longer 'clicking' when shifting my rear derailleur up into a larger sprocket. It still shifted fine, but I noted that I should look into ...
1
vote
2answers
84 views

Should I switch to a smaller chain ring?

I am back to cycling after 7 years absence due to injury and time commitments. When I started 3 months ago I weighed 20kg more (105 kg in total) than when I stopped. My target is to build fitness ...
1
vote
1answer
70 views

My rear cogs (not sure on the correct name) turn at force even when stationary.

I got a new bike and was riding it home and every so often it felt like the chain wasn't there and my feet pedal a little faster and then all of a sudden it would go back to normal. I looked in to ...
1
vote
1answer
83 views

Is it normal for a Derailleur pulley to “wobble” a little bit? Or does that mean it's time to replace

I'm trying to repair my bike for the first time, so i'm learning. It's a shimano deore set for a flat handle road bike. It won't stay in gear --- it keeps shifting while i ride, especially in the ...
1
vote
3answers
101 views

Cannot locate mysterious crunching/grinding noise

I've seen other posts on this general subject. My BB seems tight, new chain installed by bike shop, gears all checked ... I am second owner of this Raleigh so no knowledge of past usage or ...
1
vote
1answer
228 views

Adjusting brake rub on a mini-v brake (Giant Propel)

I have a Giant Propel and the front left brake is constantly rubbing and sticking against the wheel. I've tried adjusting the bolt highlighted below, which I believe is the spring tension, but ...
2
votes
1answer
201 views

How to turn off segments on edge 510

Recently I've been getting notifications on my edge 510 of an upcoming segment (& and display when riding through it) - I can turn this off by hitting the red cross on screen when it comes up, but ...
1
vote
3answers
103 views

Why not upgrade?

I've got a 1997 Trek 1220 that I picked up relatively cheaply. When purchased, it was freshly tuned with new cables brake pads, chain, cassette, and also with a new wheelset. The cassette had been ...
8
votes
3answers
281 views

Is a car “perfectly entitled” to turn left around cyclist

(I'm in the UK so we drive on the left) This morning a driver pulled up alongside me (to my right) at a junction. As soon as a gap came available, I pulled out to turn left and he did the same, ...
2
votes
3answers
100 views

Can't downshift rear derailer

I'm trying to fix my wife's bicycle which sat out all winter. I can't get the rear derailer to downshift from the twist grip shifter. I have inspected and cleaned and lubricated the cables, nothing ...
1
vote
1answer
126 views

Flat tire keeps occurring while bike is stationary. MYSTERY

I keep changing my tube. It get's a hole right near the base of the valve. I've checked the rim, there's nothing sharp. there's nothing sharp in the tire (the hole's on the inside anyhow). and it ...
3
votes
2answers
200 views

Validity of UCI motor concerns

In the wake of the seemingly renewed post-race examinations for 'mechanical doping' by the UCI, I was wondering if anyone has experience with the motors in question (like the Vivax Assist - thanks, ...
7
votes
1answer
188 views

Why fixed-gear for track racing?

I have what seems like a really simple question, and yet I didn't manage to find the answer. Why do track races require fixed-gear bicycles, as opposed to single-speed freewheeled bicycles? Is it ...
3
votes
1answer
93 views

bicycle pedal design specifications for threads

Where can I get information on the various different types of threads used in bike pedals as each manufacture has its own specifications? Different manufactures of pedals have different threads and I ...
0
votes
2answers
196 views

Is any major manufacturer working on a 12 speed group?

So, 11 speed groups are great, but as everyone knows, they are old news and manufactures are constantly innovating and upgrading to sell "this year's" new parts. 11 speed has been around for a ...
0
votes
3answers
69 views

Ideas for consistently popping tubes

I ride a cyclocross about 50 miles a week. About half of the mileage is spent on roads, the other half on single track trails. In the space of 3 weeks I have had the tubes pop 5 times. Once the back ...

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