0
votes
1answer
63 views

Reason for handlebar diameter

Why are handlebars the diameter they are (22.2 or 23.8 in grip area)? In general, the best diameter for grip strength is where the hand around the grip has about 1mm from the tip of the middle finger ...
1
vote
0answers
38 views

Modify geared hub to fit a 110mm frame

I have a kids' 18" bike with a fixed gear and a coaster-brake. I would like to replace the rear hub with a (preferably 3-)geared hub with a coaster brake as it is the kind of brake my kid is most ...
0
votes
1answer
58 views

When did Ultegra shift from 9 to 10 speed rear cassettes?

I'm looking at a used Trek road bike for my daughter. I found an aluminum frame, carbon fork bike with 105 shifters and an Ultegra 9 speed rear derailer. I'm trying to figure out how old the bike is ...
0
votes
1answer
106 views

Sourcing wheels for hybrid bike

I've got a performance hybrid I want to upgrade the wheelset for. I'm looking for narrow rims - I'd like to run 23c tires (so the "charts" suggest 15mm inner width) - with a 135mm (mountain bike) hub. ...
0
votes
4answers
119 views

What's causing this puncture?

This puncture is on the inside face of the tube. One day I got a big piece of glass in my tire. I patched it up and then I got a puncture on the inside face of the tube. I patched that and then I got ...
1
vote
3answers
136 views

Hydraulic disc brakes - total friction as a function of rotor size

I have a hydraulic disc road bike with a 160mm rotor on the front and a 140mm on the rear. The setup is exactly the same front to rear, except for rotor size. I'd like to know the disparity between ...
3
votes
2answers
204 views

Does anybody use an under the saddle bag for touring? (Not Pannier Bags)

I am looking for a bag as an addition to my backpack to use for cycling. A pannier isn't a choice I want to make, because I believe they balance the weight badly, and that there is some risk of broken ...
0
votes
3answers
94 views

Can I change from short to long derailleur to increase cog size

I am have a tiagra 11-25 10 speed cassette with short cage. I am a poor climber and looking for extra gear; I would like to go 11-32 for this year until my climbing improves, will the short cage ...
0
votes
2answers
107 views

Why is the tube too long? [duplicate]

My current tube was badly pierced by a screw in the street, so I wanted to replace it with a new one. The tire is a Continental 32 - 622 (28 x 15/8 x 1 1/4 - 700 x 32c), so I bought a 28" tube, ...
1
vote
2answers
84 views

Which clothing brands are most suitable for very tall men?

I always have issues finding cycling clothing that fits my body shape. I am 196cm / 6ft 5in of (reasonably) slim build (but certainly not skinny). When buying a jersey that is XL they often fit me ...
0
votes
1answer
85 views

recommended clothing for compromise betwee office and and biking home on a race bike?

I recently started riding to work again. I'm using a hybrid (they're called that way. its a sporty bicycle with full gears and tires between city and mtb type tires) now, but i want to use my racing ...
2
votes
4answers
142 views

Do I have to stop pedaling when shifting up the front chainring?

If I keep pedaling when shifting up the front chainring, it would fail. Moreover, the chain keeps rubbing with the chainrings and produces many noises. Thus, I have to stop pedaling for around one ...
1
vote
2answers
236 views

inner tube to fit in a 26 X 1.5 bicycle tire

I have a tire 26 X 1.5 what size tube should I buy for it? As yet I have not tried tubes because I don't know what size to buy.
0
votes
1answer
48 views

Can you brake and operate gears at the same time with MTB Dual Control levers?

The videos I saw so far show that with the same lever you can brake or change gears. OK. But can you do it in the same time? For example you downshifting, lever is pressed down, can you start braking ...
0
votes
3answers
162 views

Kashima coat or not?

I have some Fox Float 32 Evolution 140mm travel forks on my 2015 giant trance. I ride very aggressively and it's a bumpy ride down a lot of the tracks I do. Keep in mind I do technical tracks, over ...
1
vote
1answer
111 views

Should I switch to a 13-23T or 12-25T cassette?

I am currently riding a Fuji Sportif 1.5 with original configuration. I am not using clipless pedals currently. The bike come with 50/34T chainrings and a 9-speed 11-32T cassette. I noticed that most ...
0
votes
1answer
88 views

Where does aero wheels noise come from?

One time I hear someone said, with satisfaction, that his aero wheels sound awesome. I wonder where does the noise come from, is it because you ride so fast the pushed air makes the noise or is it ...
6
votes
5answers
274 views

Road positioning when stopping at an intersection with stationary traffic

When the light is red and there are cars in a line. Since bicycles ride on the very right do we go ahead to the stop light or stay behind the cars? I live in British Columbia, Canada.
1
vote
1answer
55 views

How to check if the gear shifter or the gear itself is broken?

I'm not a bike expert so I'm not sure if I'm using the proper terminology here. So I bought a used city bike. It's the first time I see such gear and such a bike actually. It looks almost like this ...
2
votes
4answers
156 views

Road bike assembly - required tools

could you please list a COMPLETE list of required tools to assemble a road bike? I purchased a shimano 105 group set and a Chinese carbon road bike frame with a fork. I'd like to put together my first ...
2
votes
2answers
239 views

Cycling too Fast [closed]

Update: I'm not really looking for any legal advice here, more looking for pointers to articles or whatever covering these topics. Last year I was involved in a road crash whilst riding to work ...
0
votes
2answers
102 views

Is the bike i'm using right for Mountain Biking?

Im not exactly down with the terms used in MTB, I have recently bought a new bike. It was within my price range and its great for riding on the road and forest trails. Its a "Carrera Hellcat II ...
7
votes
3answers
413 views

Saddlebag Laptop advice

I live close enough to work that I'm able to bike there and back every day. I also pack a laptop in a backpack. I am seeking ways to reduce the weight on my back. I've only seen people use saddlebags ...
0
votes
0answers
43 views

Peugeot 24" road bike classification

I have in my possession from childhood, an elderly peugeot road bike. Unfortunately I have no photos, but the details I do have are this: 2x7 drivetrain, 24" wheels, yellow frame and bottle mount ...
0
votes
1answer
60 views

Crank fell off square taper BB. Should I replace bottom bracket

After years of use and multiple retightenings my crank will fall off my bike about once a week and definitely needs to be replaced. I believe that the square hole of the crank has expanded to the ...
-1
votes
4answers
107 views

Can a sora 9 speed Rear Derailleur short cage support a 12-36 cassette single chain ring 56T?

My 20 inch folder has a single chain ring of 56T and a 11-28T cassette, 9 speed Shimano sora 9 speed Rear Derailleur short cage. I want to change the cassette to 12-36T for some hill routes. Based on ...
0
votes
2answers
131 views

Is this a clipless pedal?

I have bough a 2nd handed road bike recently. The seller said that the pedal could work as both platform pedal and clipless pedal. Is it true? If yes, which system of clipless shoes can it work with? ...
0
votes
1answer
32 views

How do I determine what kind of replacement shifters I need?

I need shifters for a 16 speed bicycle. When shifters are advertised as 2x8 is this referring to a bicycle with 2 sprockets in the front and 8 in the back?
0
votes
1answer
21 views

Campagnolo 1973 strata cranks(BMX) help

I am installing them on a very rare BMX frame.the bottom bracket shell measures 66mm.I believe I'm looking for a spindle length of approximately 110mm.it also has to have English threads.my question ...
0
votes
3answers
137 views

Headset fully tightened, but fork still loose and wobbly [duplicate]

I'm almost done assembling my new bike :) There is still one thing in the way though... See the headset in the picture? It was installed by a professional (or, at least a LBS owner) when I bought the ...
0
votes
1answer
146 views

Shimano Hollowtech II bottom bracket: milling the frame necessary?

In a bike shop I recently asked for bottom brackets. The seller said, when choosing a Hollowtech II bottom bracket (like SM-BB70), compared to Octalink/square taper bottom brackets the outer (lateral) ...
0
votes
1answer
52 views

Does a carbon frame need two-bolt seat clamp?

Does a bike with an alloy seat post and a carbon frame need a seat post clamp with two bolts? Most clamps these days seem to be either quick release or single bolt. Is that safe to use with my set up? ...
2
votes
1answer
71 views

Can anyone identify this freewheel type?

When googling the types it seemed to most closely match a Atom/Regina but it has 25 24 teeth and is about 3.5cm across. It's from a 1980s Raleigh road bike. But the bike has had a lot of work done to ...
0
votes
0answers
18 views

Recommended Tire pressure [duplicate]

Looking for recommend. Tire pressure for a 26in MTN bike. Im around 185lbs. I am fixing my bike up, and I want to make sure not to over inflate as I do not want to blow a tire.
0
votes
2answers
110 views

Relatively new tube exploded by itself without any external force

This morning I heard the tube in the rear tire explode (I never heard a tube explode before. It was quite loud). I hope someone can shed some light on why this may have happened (and how to prevent ...
0
votes
1answer
40 views

Can Lezyne Stainless-12 chain tool handle be used as tire lever?

This really makes me curious, Lezyne Stainless-20 has a separate tool -- tire lever (however I don't see clearly on pictures how it looks like). The specification of Stainless-12 does not list tire ...
-1
votes
1answer
108 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
1answer
49 views

Can an untrue wheel cause up down jerks?

I've noticed during a ride that the back wheel was giving me unpleasant up-down kicks (sort of like a weight was added on a section of the rim). I realised later that it had maybe 2-3 mm of left right ...
0
votes
2answers
164 views

How do I tell the difference between bike brands

I have a 20 inch BMX bike. It was given to me with no stickers or identifying marks on it. How do I tell the difference between brands?
0
votes
1answer
57 views

Help me setup my bike to my weird size?

I'm 6'6" but have very short arms for my height. Many guys 6'0"-6'2" will outreach me if standing flat footed. I have an XL frame, 2014 Raleigh Talus 29er comp. I feel great on it, but I feel like ...
0
votes
1answer
46 views

Help altering old Marin MTB to an In-town pavement cruiser?

I have an old Marin Bobcat Trail MTB with 26" wheels. I want to make a road bike out of it, and don't want to spend a bunch of money. I just want to be able to go fast and coast for awhile, so I don't ...
1
vote
2answers
154 views

How to “shop” for bikes via mail order

What is a good method for finding a bike which matches my riding style, body measurements and bank account size when not able to actually go and try the given candidate bike model(s) in-person? In my ...
1
vote
2answers
386 views

Beginner bicyclist question about purchasing a new road bike

Completely new to biking, and am considering purchasing a decent road bike that'll be comportable for 25 mile outings. Came across a used "KHS Aero Turbo" for 325 bucks. It looks like a nice bike, but ...
1
vote
3answers
165 views

What causes frames to break at the (rear) dropouts?

The drive-side dropout and rear axle have broken twice. It's an old-style freewheel, not a freehub+cassette. (I weigh around 100kg, and ride a lot, and have been touring on hilly, gravel roads, with ...
1
vote
2answers
114 views

Does my fixie need a chain tensioner

I'm building my own fixie (almost a cliche, sorry) and I debating whether or not to buy chain tensioners. I will be riding my bike with a fixed gear most of the time. One of the reasons I ask is ...
0
votes
1answer
102 views

Does this bike count as antique?

I found this bike. The front wheel is ruined. Back is normal, but I can replace it if it worth. It have 5 gears. It have no serial number under BB. So here my questions: 1. Can anyone tell ...
2
votes
1answer
67 views

Mtb weld repair Al frame

I am looking at a full sussy mtb with an Al frame, it's cheap but needs to be welded,as the frame is cracked, it's a cult insomnia. 52 inch. Anyone weld a mtb before, it's cracked on lower bracket, ...
0
votes
1answer
105 views

Replacing old brake blocks with modern pads

I'm looking to freshen up a 60's Raleigh Sports that has the old standard brake blocks on it. If I able to put modern pads (http://www.koolstop.com/images/ks-bmxdl_art_lg.jpg) from a cantilever brake ...
0
votes
0answers
63 views

Can having a valve too short cause punctures?

I recently got two punctures in two weeks on my rear wheel. I use the carrera tdf with the kenda tyres supplied. The inner tubes I used were both quite short at the valve to the point that I could ...
1
vote
1answer
80 views

Cadence and speed monitor on rear wheel?

I'm just wondering if you are able to put the cadence and speed monitors of the polar cs200 on the rear wheel for stationary training?

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