0
votes
3answers
122 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
132 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
44 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
68 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
17 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
107 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
39 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 ...
0
votes
1answer
75 views

Children's bike problem with back wheel

My daughter has sparkle and glitz 12 inch bike with stabilisers since we purchased the bike every now and again the back wheel keeps spinning when she is pedalling seems to be affected more when there ...
0
votes
1answer
48 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
1answer
89 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
55 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
42 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
113 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
376 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
158 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
97 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
99 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
60 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
97 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
59 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
74 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
652 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
115 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
128 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
134 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
215 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
135 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
72 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
106 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 ...
0
votes
2answers
113 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
52 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
501 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
103 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
127 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
111 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
49 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
50 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
151 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 ...
-1
votes
0answers
49 views

Spongier brake pads = longer rim life?

In addition to the superior braking power that spongy pads afford, it seems like they would significantly increase the life of your rim. To take this example ad absurdum, imagine metal brake pads. ...
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 ...
0
votes
1answer
97 views

How to fit BB bearings to install Ultegra Crank on road bike Wilier Cento 1

I've bought a used Wilier Cento 1 carbon road bike frame (not the new Cento1SR, but the previous model). Now I would like to transfer all Ultegra 6700 groupset components from my existing bike to it. ...
-1
votes
1answer
69 views

Frame not faced for BB. Strip the paint or leave as-is? [duplicate]

So I just got my new frame from the LBS. They were supposed to face the frame, but only faced the head tube (hopefully, can't check it since the headset is already installed.). Sadly, they didn't ...
0
votes
1answer
65 views

Technical documentation for Shimano FC-M510

I'm having a hard time finding the technical documentation (equivalent of https://www.dropbox.com/s/yx5hq4cezpdz641/alivio-crankset-service.pdf?dl=0) for the Shimano Deore Hollowtech 1 crankset, ...
0
votes
1answer
29 views

2 size bearings for hub which side of hub gets the bigger or smaller bearings?

The rear axel is a Kung Ten W5ER from a 1999 Trek 4000. The freehub was sticking so I was taking the axle apart to free up / clean / lube the freehub. I noticed after it was apart that there are 2 ...
0
votes
1answer
62 views

Mongoose Right Bike Gears shifting up magically

On the right, or back gears of my mongoose bycicle, the gears are not clicking as they should on the right side. Its stuck in 6th or 7th gear and it has a grip-shift that works fine on the left side. ...
0
votes
1answer
34 views

Tire direction on Miami Sun tricycle

The tires on my Miami Sun tricycle have chevrons that point in the opposite direction and the label on the side wall which reads drive direction. Do I align the tires using the chevron or the arrow ...
0
votes
3answers
150 views

how much of a difference does bike weight make when trying to maximize the bike's top speed? [duplicate]

Today I was at a bike shop looking at single speed bikes. I rode one, but didn't buy it because I like to bike fast, and this bike must have weighed 2x more than my aluminum road bike (the bike was ...
0
votes
2answers
86 views

Spoke puncturing my tube, can I cut it?

I recently bought a second hand city bike. After a 2 weeks I got a flat tire. On closer inspection it looks like this is due to the spoke. The rim tape is fine though. It seems that this particular ...
0
votes
1answer
85 views

Rear disc brake question

I have a dynacraft next mountain ridge 26" bike & it already has a front disc brake but would I be able to add a disc brake to my rear wheel which previously had a v brake on it that I ripped off? ...
0
votes
1answer
104 views

Why are spoke nipples called nipples?

Does anyone know the etymology of the term 'spoke nipple'? The wiki page on Spoke Nipple and even google doesn't have the answer. Are there other threaded mechanical screws that are more like ...

15 30 50 per page