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Questions tagged [frames]

Bicycle frame construction, selection, maintenance, and repair.

0
votes
1answer
7k views

Determining make model and year of bmx frame

I'm restoring a 20" bmx frame and would like to know maker, model and year so I can restore to original as possible. There are two numbers on the bottom of crank housing. MBI-...
1
vote
2answers
153 views

Best frame material for Leisure

I cycle less than 10kms a day but I'm a little on the heavier side as well. What would you recommend, Aluminium, steel or Carbon fiber frame (body)?
0
votes
1answer
125 views

Can I put 700x32 tyres on my Avanti Blade?

I'm kitting out my 2006 Avanti Blade for some touring in Tasmania, and the tyres need replacing. Currently they've got some 700x28's on there, but I want to go a bit thicker for touring in case I need ...
1
vote
1answer
147 views

Would like to find out what is the brand of this bike I am rebuilding?

I know is chromoly frame, and serial number starts with 8D30D334... I will add pictures, if anybody can help would be great... Edit from a later post: Yes, I found out that the tires had been ...
5
votes
1answer
124 views

Panasonic/Tange brake cable guide removal and replacement

As someone who has never had a bike with internal brake cable routing (in this case through the top tube), I bought an '87 Panasonic DX 3500 bike for restoration. The frame as well as many of the ...
7
votes
2answers
1k views

Aluminum frame quality - how much variation can there be and how to tell?

Take a look at these two aluminum frames. The first one is a $1k bike, and the second one is a $200 bike. Is there a significant quality difference between these frames? And if so, how can I appraise ...
10
votes
3answers
2k views

Recycling bicycles

Previous week our street had a collection of bulky waste. In two days I have really seen an enormous number of old bikes. Some bikes were probably more than 30 years old. Typically, old people save ...
1
vote
2answers
249 views

Please help me identify this frame

The sword on the frame is the only identifiable mark on the bike. A guy I used to rent a room to left all his crap here. It's been sitting in my garage for years.
5
votes
2answers
1k views

carbon seat post to carbon seat tube - necessary to loosen periodically to prevent seizing in place?

I recently (about 4 months ago) purchased a bike with a carbon frame (i.e. carbon seat tube) and a carbon seat post. I've read some nightmare stories about having to replace an entire carbon frame in ...
1
vote
1answer
145 views

Is SLX FD 675-B front derailleur appropriate for my bike?

It seems I've made a few 'tiny' errors when choosing components to upgrade my bike. The biggest issues I'm facing at the moment are crankset and front derailleur... Bike is Eyble Psych 4 Black ...
22
votes
18answers
3k views

What different frame materials have been used?

In response to yet another frame materials question, I thought it might be useful to start with a more answerable question. One answer per material please, with an example of a bicycle frame using ...
4
votes
4answers
695 views

How do different frame materials affect the handling of a bike?

I can appreciate that some materials are lighter than others and some have more flex than others, but overall, how do different frame materials affect handling of the bike? Assuming the same geometry ...
-4
votes
1answer
279 views

What kind of bike is this? Can anyone tell by the logo?

I got this bike but am not sure what kind it is is there anyone who knows this logo on here?
3
votes
4answers
2k views

How to protect bike frame mounted on the carrying rack?

The ropes I fix the bike with on the rack and the rack itself (although covered with a plastic layer (an old inner tube) make marks on the frame. I would like to avoid using extra pads, sponges or ...
1
vote
1answer
159 views

Identify old road bicycle frame

Does anybody have idea what is this bicycle frame? We are considering with a friend restoring it and would be grateful for any info, also is it worth it. Frame is totally without any stickers or ...
0
votes
1answer
55 views

An Old Tandem. Need to Know the Maker [closed]

I have an old Tandem Frame. The identification is the Number 311. Is it possible to identify the manufacturer just from this information
-4
votes
2answers
1k views

Are Bikesdirect.com bikes any good? [closed]

I need a new touring bike. I live in an area where such bikes are associated with exorbitant prices. Given that I am really attracted to buying my next touring bike from Bikesdirect.com and cut the ...
4
votes
1answer
2k views

What are the differences between Columbus Tubings?

I'm just wondering why there are seven kinds of tube sets by Columbus (or Reynolds). There's XCr, Spirit, Life, Zona, Max, SL, and Cromor. I recently had a frame made using the Cromor tubeset; mainly ...
5
votes
2answers
946 views

What exactly is a “trials” bike?

I'm interested in learning more about trials bikes. I've seen them in pictures and videos with the riders doing really impressive stuff on them; incredible balancing, huge jumps, etc. This type of ...
5
votes
3answers
397 views

Did my bike frame crack?

during my morning ride today, I slipped and fell down, and as a result, a crack formed on my carbon frame. I have checked the entirety of the bike and this is the only crack, but I am not sure if I ...
3
votes
1answer
104 views

Installing Schwinn Vestige frame LED cable

I read a post (Daniel and Jennifer) from a couple of years ago explaining that the Vestige frame LED should be replaced if it is no longer working. Thanks for that. Now, I'm seeking tips, a guide or ...
2
votes
1answer
5k views

What is the life expectancy of aluminum alloy frames? [duplicate]

I learned for the first time that aluminum alloy frames are said to have a "life expectancy". This is the bike in question, my 2007 Felt Z80. It has an aluminum alloy frame. I really like it and don'...
3
votes
2answers
505 views

aluminium fatigue how to know if some thing is going wrong?

I have an early 00' road bike with aluminium frame. I have read some stuff about aluminium having life expectancy of ten years. What it exactly means? I cant see any thing wrong in the frame (there ...
2
votes
0answers
319 views

Help identifying a Bianchi track frame

I've been trying to identify this Bianchi track frame - any help would be appreciated! Closest I've come is Eco Pista from early 80s, but I'm absolutely no expert on the matter. The numbers on the BB ...
1
vote
3answers
198 views

Dawes Galaxy OLN and horizontal dropouts

I want to build up a steel framed commuter/light tourer/utility bike with hub gears. A Dawes Galaxy from the 1990s era looks about right to provide the frame. But I want 135mm rear dropout spacing (...
0
votes
1answer
285 views

Cyclocross frame size question [duplicate]

I'm looking to purchase my first cyclocross bike and just found a good deal from someone. It's a Cannondale CAADX tiagra 2015 with a frame size of 56 cm (top tube 56cm basically). I'm a little bit ...
2
votes
1answer
122 views

Do older Dawes cycles use standard components?

I'd like to built a commuter/utility/messaround type bike. I like hub gears, and I want a steel frame. I've been looking at older Dawes bikes. Specifically a 'Streetwise' or Galaxy. I know some have ...
4
votes
1answer
2k views

Is my bike too big for me?

I recently bought a bike online for use in college and after trying to get on the bike, and I think it's too big. The problem is that I'm pretty small. Like 4'11", 27" inseam small. Little legs, yes. ...
0
votes
2answers
389 views

Which is ideal road-bike size for a person with height 5'9.5"? [duplicate]

I am 5'9.5" and in seam length between legs is 33 inch. What is the optimium frame size?
3
votes
2answers
903 views

What is the best way to protect frame from dents during crashes?

I have a bike and I crash relatively often. I'm concerned about protecting the frame from damage. I started searching for a way to resolve the problem and I'd like to share options that I've found, ...
5
votes
1answer
343 views

What should I do with a cracked titanium Lemond Tete De Course frame?

I have a 2002 titanium Lemond frame. Just found a crack on down tube. Bummed to not be able to ride it anymore. Is it worth trying to repair (if it's even possible)?
0
votes
2answers
171 views

How to choose the right size bike? [duplicate]

This question is one that I'm sure has been beat to death, but I am new to bike riding. Ideally I would have bought the bike at a local bike shop and been fit for the perfect bike. However, the prices ...
2
votes
0answers
93 views

Convert MTB tire to thin tire [duplicate]

I have a Mongoose MTB and I'm trying to convert my tires from MTB tires to road tires/thin tires. The frame on my bike is 6061 Aluminum Ledge 2.1 so if anyone knows what kind of tires to switch to ...
1
vote
3answers
2k views

Do I have a genuine GT frame, even though it's not engraved or stamped with the GT logo?

How can I know whether the bike frame I have is a genuine GT? I found the serial number u31036009 on the bottom of the hub. It has no GT logo stamp or engraving anywhere on it. Could it still be ...
1
vote
0answers
440 views

What size frame size will best fit me, 36" inseam [closed]

What size road bicycle frame is recommended for someone with a 36" inseam?
3
votes
2answers
698 views

What to do with too many old bike parts and frames to count [closed]

The side of our house is filled with old bike frames, parts, accessories, etc. - Once I hose them off and clean them up, I would LOVE to get rid of them. Where's a good place to sell them?
7
votes
1answer
275 views

Carbon Frame Ding

Today I had my Tarmac propped up against a rock wall and it slid down, scratching the paint/frame on the seat stay. I'm pretty new to carbon frames, and have heard they are relatively sturdy, but ...
1
vote
0answers
180 views

Adaptation of Regular Bike to Disc brakes [duplicate]

I have a DUNLOP SPORT DS 26 Bike. Here is a similar bike: I would like to add hydraulic disc brakes at both front and rear. But the frame or forks do not have anywhere I can mount the Calipers, and ...
3
votes
4answers
596 views

Are two different tires marked with the same dimensions (700 x 25c) the same size?

Both sets of tires are from different reputable manufactures but the details are the same. ie Clinchers folding etc. I recently changed my tires on a road bike, the clearance on top section of the ...
2
votes
1answer
187 views

can anyone help i.d. this bike?

I can not find any numbers on frame, only the crown on tank.
2
votes
1answer
3k views

Can I change a 26“ to a 24” tire on a Huntington Schinn Women's tire?

I recently purchase a Huntington Cruiser by Schwinn. The standard tires are 26". I am new to cycling and am having a hard time finding information regarding tires and frames. I would like to change ...
3
votes
1answer
239 views

Dahon Vitesse frame latch

I am repairing a Dahon Vitesse. The frame latch was incomplete. I have the new frame latch parts but cannot work out where they go, particularly the washers and small springs. Does anyone have a ...
4
votes
3answers
1k views

Is it safe to use aluminium seatpost adapter (27.2mm to 31.6mm) for a carbon frame?

I have Cane Creek Thudbuster Seastpost (aluminium) 27.2mm x 400mm which i want to use for a bike with a carbon frame (31.6mm seat-tube). I'm thinking about getting a seatpost adapter/shim from 27.2mm ...
45
votes
3answers
16k views

Why do men's bicycles have a top tube while women's bicycles don't?

Bicycles intended for men have a top tube that always hits me on that embrassing part when I brake. Conversely, women's bikes often don't have a top tube. Why is this?
10
votes
2answers
2k views

Frame with bottle cage boss ripped out - how serious is the damage?

I'm a huge fan of Greg Lemond so naturally when this frame showed up in my local Facebook page with just the frame and headset, no fork. I got very excited. The seller says that the bottle cage boss ...
2
votes
3answers
476 views

Crack in frame near forks

This is a Raleigh 06 grand prix. I've been trying to find a stem that gives me reasonable comfort. I ran a stem that didn't have the proper spacing and rode it a while observing a knocking sound with ...
1
vote
1answer
113 views

The name of my frame

Can you tell me what the name of this frame is? The handle is Philips.
2
votes
0answers
147 views

What kind of frame and brakes are these?

I just bought a bike and I can't figure out what kind of frame and brakes it has. I found that the derailleurs were made by DNB Japan somewhere around 1960 and that the handlebar is french (Guidonn ...
16
votes
1answer
986 views

What is this frame feature for?

I have a Kinesis Tripster ATR. The drive-side seat stay has a lug on it whose purpose I can't work out: There's no such feature on the other seat stay. What is it for?
2
votes
1answer
256 views

Fork trail vs chainstay length in steering

Is fork trail or chainstay length is a bigger determinant in the overall steering of the bike? Consider an arbitrary frame that I think is steers too slowly. I'm going to rebuild it because I want a ...