Bicycle frame construction, selection, maintenance, and repair.
2
votes
2answers
34 views
Saddle or frame shape for painful Coccyx?
As a child I was very active, and in a weight-lifting injury I damaged my Coccyx, making it very difficult to sit in the same position for long periods of time. As such, bicycling, what once was a ...
2
votes
3answers
572 views
Vibrations in frame when pedaling
Recently, when I pedal sufficiently hard, I begin to feel vibrations through the whole frame of the bike. They are not so strong as to make the bike un-ridable, but neither are they road chatter. I ...
4
votes
2answers
158 views
Does frame size inside a particular model affect the ride characteristics of the bike?
I read an article stating
that the smallest of a particular model of bicycle doesn't fully reflect the original design concept of the model
when I was about to buy the smallest (430mm seat tube) of ...
2
votes
0answers
45 views
How to calculate bike stand-over height using frameset geometry and wheel radius?
While it's best to buy through fitting a bike in store, it's not always possible (discussed here).
On some websites, the stand-over height of a bike may not be listed as part of the specifications.
...
-1
votes
1answer
80 views
Where should I sell my H.R. Bates frame? [closed]
I've been told very good things about this bike frame and there are a few sites devoted to it like: http://www.classiclightweights.co.uk/builders/bates.html
I have been intending to upgrade and give ...
-1
votes
1answer
101 views
Can anyone identify this frame?
I've recently picked up a 'beach cruiser' frame from a local free-add site. It was claimed to be a Huffy, however I can't seem to verify this (I've emailed Huffy and I'm awaiting their response, and ...
4
votes
1answer
98 views
Can i stop my frame scratching my seatpost?
I have an On-One Scandal aluminium frame, into which i have put a carbon seatpost. I have been adjusting it to find the right height, and i have noticed that it is getting seriously scratched - see a ...
2
votes
1answer
89 views
Derailleur Hanger replacement for GTS R5 road bike frame
I'm looking for an online site where I can buy a derailleur hanger replacement for my GTS R5 road frame.
The frame is the one in the picture ...
1
vote
1answer
91 views
Rear tire has started rubbing frame at one spot
Riding my bike within my suburban residential neighborhood, I felt a shock, like a snap although I don't think anything snapped, followed by a rubbing noise every few seconds. Pedaling and the brakes ...
2
votes
1answer
68 views
Could paint build up on a bottom bracket be considered a warranty issue?
On Saturday I received the new frame for a steel xc bike I'm building up. I went to start on the weekend but noticed a large paint build up on the bottom bracket. The build up is about 15x3mm (don't ...
1
vote
0answers
42 views
Is it cost effective to purchase a frame and components separately? [duplicate]
I was looking to buy a new MTB and was wondering if a purchase of a frame and components separately was cheaper then buying a bike with everything? I would assembling everything myself instead of a ...
-2
votes
1answer
222 views
Would a 53 cm track(cinelli mash bolt) frame fit a 6'0" tall guy? [duplicate]
I want to buy a friends but I'm not sure it will fit me
9
votes
3answers
11k views
DIY Painting a Bike Frame: Is it possible?
I have painted a couple bike frames (think really cheap garage-find rebuilds) with varying degrees of failure. Can you help me correct/fill in the missing pieces of my frame painting process?
...
3
votes
4answers
210 views
Is a custom road frame worthwhile?
I've been riding a Marin San Anselmo hybrid for some 13 years and I'd guess I've done over 7000 miles on it almost exclusively on the road (and it's not my commuting bike).
I'm gradually doing more ...
-2
votes
1answer
110 views
Size medium or large [closed]
I am buying a cube hanzz pro freeride but I cant decide on the size. The dealer has only Medium size so I cant ride the large one. I am 182 cm tall 76kg and have step length of 89cm. What shall I do?
-1
votes
1answer
447 views
How to tell what BMX frame I have?
How can I determine what kind of BMX frame I have if I there no decals on the bike when I got it? I got it from my dad who found the frame and we put it together, but I am clueless as to what brand or ...
0
votes
0answers
99 views
What is the best hard trail 26in frame for me under 800 eur? [closed]
I am buying a new frame. I have decent kit: Mavic EN521/hope hoops wheelset, 140mm tapered velvet dla fork, full shimano slx groupset. All I need is a new frame because my old one is damaged (though ...
4
votes
3answers
267 views
Cable routing and why is there no optimum solution
This is a general question, regarding the routing of the cables of both brakes and derailleurs on a frame.
I find it highly practical to mount all cables along the bottom of the top tube. This ...
3
votes
2answers
177 views
Trying to build a bike, confused about fork/headsets/compatability
I have a fork with a 1" steerer tube, and a frame with a 1.5" head tube.
The steerer tube is slightly short, and when inserted into the frame, is flush with the top of the head tube. The fork is ...
5
votes
6answers
576 views
What are the differences between a mens and womens bike frame?
Why do women's bikes have a diagonal bar in the frame instead of a horizontal frame? Is this the only difference?
Sorry if this has been asked (but I cannot find it by searching) and I also just ...
3
votes
2answers
290 views
Is there much of a difference between flatland and park/street frames?
I am a newbie at biking, and I've been wanting to get into BMX for a few years, and I can now since I actually have some money. Primarily I've been wanting a 20" BMX bike with front and rear brakes ...
5
votes
3answers
758 views
Why are steel bikes more expensive than aluminum?
It's hard to find a chrome moly bike for less than $1000 these days. Is it because it's actually less expensive to manufacture aluminum bikes these days or is the market for chrome moly bikes so ...
3
votes
7answers
1k views
How can you remove logos from a bike frame?
I'm trying to remove all these annoying labels from my bike. On the main frame there is one big logo, but I'm not sure if it's a sticker or not. The frame is black, but it's very cheaply made, and the ...
1
vote
3answers
281 views
Is it safe to ride with bent fork?
My bicycle went from this when I bought it:
To this when I crashed (note the front fork bent where it attaches to the stem; front wheel almost touches the down tube):
Update: Just looked at the ...
6
votes
3answers
1k views
How can I tell if a bike is too big for me?
Today I disassembled my current fixed-gear, and reassembled all the parts in another frame, which I am considering to purchase.
The current owner of the frame warned me that it might be too big for ...
1
vote
1answer
114 views
How can I use a small Shimano BB on any frame?
I have a Shimano BB-ES25 bottom bracket and 45T crankset that was removed from a Giant-CRX City with an eccentric hub (it had Shimano Alfine internal hub gears).
They have literally never been used, ...
1
vote
1answer
136 views
How bad is this damaged lug
I have noticed a little crack in one of the lugs of my gazelle steel frame. I hav not ridden it since, because I am worried it will break.
Here are some pictures. The lug in question is the one ...
16
votes
4answers
3k views
How can you recognise a quality steel frame?
I'm looking to buy/build a road bike and I would like it to:
last 100 years
have a low environmental cost
As I'm not interested in shedding grams (a diet would be more helpful for me), I'm leaning ...
1
vote
2answers
348 views
Am I better off buying a new bike, or upgrading my old bike?
Half a year ago I started to use again my old Schwinn Woodlands MTB for commuting. I didn't want to spend a fortune on a new bike, I wasn't certain that I would like to bike commute daily.
Bike has ...
0
votes
2answers
321 views
Where can I go to change the vertical drop out for a horizontal drop out?
I have an aluminum road bike frame that I want to use to build a fixed gear. My problem with this frame is that it has vertical drop out and no derailleur hanger. Fr
0
votes
1answer
330 views
What difference does bike size make?
I am 6.2 feet tall, and I have a mountain bike that is 17 inches long.
I know it looks bit small for me, but will I hurt myself by riding this bicycle? What should be the preferred bicycle length for ...
5
votes
1answer
249 views
How feasible is it to transfer modern (2010) components to a 90s frame (road bike)
My 2010 aluminum frame may be toast (stripped bottom bracket) and I was considering getting an older chro-mo frame and transferring the components to it. It's a racing/sport style with drop bars and ...
5
votes
2answers
1k views
Why offset the rear rim to the hub and not the hub in the frame?
I'm currently reading The Bicycle Wheel by Jobst Brandt, and I'm reading all of the issues with offsetting the rear rim toward the drive side of the hub...
Asymmetry in a rear wheel built for a ...
1
vote
1answer
213 views
Purpose of partially filled in rear drop out
I have an old MTB frame that has the drive side rear dropout partially filled in as if it was part of the original forging of the dropout. And, I have seen this on a few other frames -- even ...
6
votes
2answers
553 views
MIG Welds vs Brazing for simple bike hacks
Given that frames are generally brazed, not welded and given that MIG welding will work on simple bike hacks what are the downsides of MIG welding these hacks?
For example, I would like to make a ...
4
votes
2answers
303 views
Why are bike frames getting so much bigger
This is just a general interest kind of question, but I've really been wondering about this lately. We've had a lot of advancements in bikes over the years, and people are always trying to make them ...
6
votes
2answers
435 views
How to choose between a race bike like a Madone and a classics bike like a Domane
I ride regularly for exercise in New York City but do not race. I currently ride on a steel frame that handles the rough roads easily. I want to buy a carbon bike and am torn between a "classics" bike ...
4
votes
5answers
1k views
Which type of frame is better for a touring bike, steel or aluminium?
I hear that a steel frame is more comfortable to ride for a long tour but that it is heavier and easier to rust than aluminum.
Which material is better for a touring frame?
0
votes
1answer
338 views
How to avoid or reduce back-pain by adjusting the handlebar and seat of 19.5" MTB?
I'm 6' 3" long, having 45 inches of waist-Toe length. I bought Trek 3500, 19.5" sized frame bicycle two months ago. I've been experimenting with the handlebar and seat positions(Forward n Backward) to ...
8
votes
2answers
687 views
Is it possible to repair a dent on an aluminium frame?
I have Centurion Cyclo Cross 4000 bike. Recently I got into an accident with a car door. As a result I have a significant dent on my frame(see the photos below).
I have two questions:
Is it ...
1
vote
1answer
185 views
34.9mm front derailleur on steel frame?
Can I fit a 34.9mm front Shimano derailleur on my steel frame? I understand that steel frames are narrower. However, is there some sort of adapter that I can use, or can I even wrap the frame around ...
4
votes
6answers
3k views
Fixie/Single speed frame information for beginner
I don't want to buy a ready made bike because singlespeed or fixed gear bikes are way expensive due to their popularity.
I want to make my own bike, I haven't build a bike from scratch before. I want ...
-1
votes
2answers
115 views
What frames fit these requirements?
I'm looking to build up a bike, and while I have certain characteristics in mind I'm not familiar enough with the frame market to know what to look at.
This would be my daily commuter/grocery runner. ...
4
votes
2answers
521 views
How does stiffness in carbon frames increase speed?
I have a Specialized Roubaix with a 7r carbon frame; the Tarmac has 11r. Will I notice a speed change if I ride "exactly" under the same conditions? Does the additional 4r = more speed? I am thinking ...
9
votes
8answers
3k views
How does a bike's weight affect the overall experience of owning it?
Naturally, carrying a light bike up the stairs is much more enjoyable compared to a heavier bike. Are there any other aspects of a bike which are affected by its weight?
For example, would the weight ...
1
vote
3answers
854 views
Can a (relative) beginner adjust spacing on a 501 cromo road frame?
Have acquired a cheap old Peugeot road bike from ebay; nice cromo frame, but it needs a new rear wheel and unfortunately I didn't check the dropout size before buying.
It has an OLD of ~120mm, but I ...
1
vote
4answers
603 views
Is there a quality alternative to powder coating when it comes to repainting a steel frame?
I'm not a paint expert and want to make a choice that will last a few years. I know that powder coating will last a long time, but I'm restoring an older bike and don't want to spend too much. Maybe ...
1
vote
2answers
376 views
How to convert 17“ bike to 18” without changing frame
I bought Author Basic (2012) with 17" frame.
But I have some back aches after 2 or more hours of cycling (just cycling or with little jumpings) and sometimes I feel little unsure while riding ...
1
vote
3answers
231 views
Skid on small frame
I bought a new, cheap and maybe nasty fixed gear bike. They were only in sizes 54cm and 56cm, so I had to go for 56cm, even though my road bike is 61cm and I'm 186cm. My first few skidding attempts ...
7
votes
4answers
1k views
What should a big guy look for when buying a road bike?
I'm 6ft 4" (1.8m) and 22st (139kg). I do a fair bit of cycling, mainly spinning and mountain biking.
I would like to get into road riding so I'm looking to buy a road bike. I want to spend between ...
