1
vote
1answer
56 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
158 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
103 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
62 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
126 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
141 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
54 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
73 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
112 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
118 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
168 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
58 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
48 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
387 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
168 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
116 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
104 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
69 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
110 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
65 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?
1
vote
3answers
680 views

Pedals hits the ground too often while turning at relatively high speed

I’ve been riding for 40+ years of which the last 25 I’ve ridden Specialized. Around April last year I decided to replace my old bike with a brand new Sirrus Sport, on an XL frame. While I love the ...
1
vote
1answer
126 views

Repairing a damaged cone nut

So I've got a nice hybrid bike that I picked up secondhand, was doing some maintenance on it to get it up and running and thought I'd replace the bearings in the rear axle. In doing this, I've found ...
1
vote
1answer
134 views

can you use a cycle path to bypass red lights?

Okay, so this is my issue. On my commute home there is a spot where there is a light straight ahead, before the white line the cycle lane mergers with the path on the left. Does this mean i can ...
3
votes
2answers
161 views

Chain with master link / quick connect link doesn't clear rear derailleur

Bought a chain with a master link (packaging said quick connect link), it looks just like this: This bit however won't fit cleanly through my derailleur, it snags on the wall right as it goes onto ...
2
votes
1answer
254 views

What are the differences between road rims/wheels and hybrid?

I recently purchased a carbon fiber wheel for my bike. It turns out the wheel isn't right for my hybrid bike for a number of reasons: brake availability, hub diameter, rim width, etc. So now I'm on ...
2
votes
1answer
142 views

former weightlifter turned triathlete repeatedly breaking hanger

Every year, it seems I am on a training ride 5-10 miles from home and while torquing up, I snap the hanger throwing the rear derailleur into my spokes and locking up my rear wheel. I am 205lbs and ...
0
votes
1answer
77 views

creaky sound when cranking [duplicate]

My bike seems to all of a sudden developed a creaking sound when I pedal. It appears to be there in every gear. Bu t I noticed it appears to only happen when I put pressure on the left pedal. What ...
0
votes
4answers
117 views

Are rusty disc brake pads a worry?

I'm the fool who didn't wash the snow off his bike - it's a rusty mess. I've just taken apart the front disc brake as it was rubbing. I think that was more to do with the disc being bent, but as I ...
1
vote
2answers
151 views

new MTB creacking on hard pedaling

When I press down hard on my right foot trying to go fast or up a hill I hear a noise coming from my bike. What is this? Its brand new... If it isn't an easy fix I will take it back. It only happens ...
0
votes
0answers
58 views

Rear derailleur shifts all gears at once

I've got Campagnolo Veloce gear system and I recently changed my worn-out rear cassette to a new one. Since then I've experienced issues when shifting to higher gears. When I shift, the cable moves ...
3
votes
3answers
549 views

Is a 29.5 km/h average speed decent for a 90 km ride (on road) with an elevation of 1200 m?

I have been riding about 150 km a week commuting and on the weekend. I frequently do rides over 80 km. I'm riding a carbon cyclocross (Ridkey x-fire) with slicks. My latest ride was on the ...
0
votes
2answers
117 views

How to repaint a Carbon bike frame?

I have recently purchased a Specialized Roubaix SL4 Elite Disc carbon frame bicycle - But I am not particularly happy with the colour. It is charcoal and white. I like to have a brighter colour. Is ...
1
vote
3answers
151 views

fixie brake lever

I've got a bit of a dilemma with regards to brakes on my fixed wheel bike. Currently I've got both brakes on, as standard road levers on the hoods of the drops, but now I'm running fixed instead of ...
0
votes
3answers
116 views

Trouble Removing bottom bracket. Is it my Tool?

I'm having trouble removing my bottom bracket. I'm using quite a bit of force as far as I can tell. But neither side is budging. The bike is a 2011, and I've never removed the bottom bracket, but ...
0
votes
1answer
99 views

Shimano revoshift 7 speed use

I just got a Nishiki cross bike and it has a Shimano Revoshift 7 speed. The bike is about 3 years old or so and did not come with a manual and I am a biking novice. The shifting I understand. The ...
0
votes
1answer
52 views

Geometry measurement, from where to where

I'm looking at http://www.specialized.com/ca/en/bikes/road/tarmac/tarmac-comp#geometry and would like to know what "Seat-Tube Angle" means. For say the 56, I would assume that angle is like this ...
8
votes
1answer
159 views

What does this piece do that came with my disc brake?

I recently ordered hydraulic Shimano disc brakes with rotors and they came with a bunch of hardware, including this piece: It looks like it would fit under the screws that secure the rotor to the ...
0
votes
1answer
54 views

How to align rear v brakes

i have a bike that has v brakes on the rear wheel. Everytime i try to align the brakes after i ride and use a few times the rear brakes, one of the pads is rubbing on the rim. Please help as i have ...

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