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Questions tagged [frames]

Bicycle frame construction, selection, maintenance, and repair.

0
votes
2answers
437 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?
5
votes
2answers
949 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
407 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
182 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
95 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
3k 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
484 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
739 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
304 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
185 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
644 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
197 views

can anyone help i.d. this bike?

I can not find any numbers on frame, only the crown on tank.
2
votes
1answer
4k 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
262 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 ...
46
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?
9
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
496 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
150 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
992 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
270 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 ...
6
votes
3answers
1k views

Frame manufacturer not covering crack as saying it was crash damage

My Ti frame developed a huge crack in the frame a week or so ago. A pain I thought bit it'll be covered by warranty... The frame builder is now saying that it's crash damage. I really really doubt ...
3
votes
1answer
302 views

Uncut steerer tubes too short for 21" Frames

I am restoring two old bikes a 1996 Trek 8000 and 2000 Fuji Aloha. Both are 21" frames. The problem I am having is getting forks that do not cost $1000 and have steerer tubes with sufficient lengths. ...
5
votes
3answers
1k views

How much longer will my 10 year old frame last?

My friends say it will last forever, and not to worry about it. Online results show anywhere from two years to 25. I have no clue what to expect!! Let me give some context. I bought a decade old ...
1
vote
1answer
3k views

Bike Fit Confusion

A friend of mine has just purchased a 2016 Trek Emonda SL6 in a 54 cm frame size. He is 169cm tall and according to the Trek sizing chart (attached) he could fit a 52 cm or easily fit a 54. The ...
0
votes
1answer
100 views

Building a traveling bike, frames and components: where to buy in Europe [closed]

I am about to either buy either build a bike for medium-long travels, and I am struggling with differences between the european and american market offer (I live in France). Talking about the ...
7
votes
2answers
638 views

Internal cable routing blocked on '80s steel frame. What are my options?

I have a new-to-me ~80's steel frame with a rear derailleur cable that is routed through the chainstay. There's a blockage close to the BB end, and I'm wondering what my options are? My assumption is ...
5
votes
3answers
1k views

Should I ask for my money back - crack in Titanium frame

About 2 years ago I got my new bike - an Enigma Ti bike. The frame was customised for Di2 and I had hydraulic disk brakes fitted. An expensive bit of kit that was supposed to last forever and make my ...
4
votes
2answers
584 views

Is it normal for seat stays on new CAAD12 frame to be slightly warped/not straight?

The seat stays on my brand new Cannondale CAAD12 frame are slightly warped (not straight and slightly different on both sides), especially around the welding spots for the rear brake mount. I could ...
1
vote
2answers
696 views

Are there any major drawbacks to using a track frame as a frame for a fixed-gear or single-speed commuter?

I follow a few communities which have a lot of fixie and single-speed riders. Most of the riding discussed is commuting around the city, and often, riders will show off their new bikes, upgraded ...
1
vote
2answers
909 views

How do I bend my rear derailleur hanger (part of frame) back into place

Somehow I bent my rear derailleur hanger, how would one suggest bending it back into line? In my case the rear derailleur hanger forms part of the frame and therefore if I snap it when bending it back,...
2
votes
1answer
112 views

Unknown Balfa Road Bike

I have a Balfa road bike which I cannot find any information on or pictures anywhere. I would like some help identifying the bike model, the original parts, and the frame. What I have found so far: ...
6
votes
2answers
509 views

Steel Frame Creaks while Braking

My steel BSO has developed a creaking sound when I apply the front brake. I only hear it when I am beginning to brake, when there's not a lot of pressure being generated. I can recreate this sound by ...
1
vote
1answer
213 views

Posture on mountain bike long term

I have been looking at sizing guides because I'm contemplating ordering a new bike and found out that I'm the totally wrong size for the bike I actually have. I'm normal proportions and 5 foot 7, but ...
3
votes
1answer
1k views

Lifting a road bike by one of the seat stays ok?

Is it ok to lift a road bike by one of the aluminium seat stays? Yesterday I realised I was doing this when inspecting the rear derailleur during a ride (front of the bike facing down, all the weight ...
1
vote
1answer
79 views

How do I keep smallest gear on my crank shaft from contacting frame

I have an old Trek 8000 ZX that I am fixing up. I had to replace the bottom bracket and I believe I successfully did that. The bike did not have a crank set to work with so I salvaged one from a pile ...
4
votes
3answers
3k views

Frame Or Paint Crack (Cannondale Super Six Carbon)

I am about to pull the trigger on a used 2012 Cannondale SuperSix bike. This would be my first bike and I'm very excited. However I am a bit concerned about some cracks. Seller claims paint is ...
0
votes
1answer
215 views

Single speed dirt jump specific frame for general riding

I am in the market for a new bike and come from a background of mainly cross country (XC) / all mountain (AM) type riding but have ridden BMX also in the past. I'm not averse to standing up and only ...
1
vote
2answers
149 views

How can I treat an aluminium frame ready for restoration?

I have an old aluminium framed mountain bike which has developed some 'oxidation / corrosion' underneath the lacquer -- it kind of looks like little white worms! The frame as original has a nice ...
14
votes
3answers
2k views

What is this spring between the fork and the frame?

Sometimes on a bike I see a short spring, most often covered in rubber, connecting the fork with the frame: What is the purpose of it? The only thing that comes to mind is stabilising the fork so it ...
4
votes
1answer
523 views

Denied warranty claim on carbon bike due to impact?

I saw a little crack on the bottom section top tube of bike which is a kestrel talon. I took it the bike shop to see if it was covered under warranty. I have fallen once or twice from the bike but I ...
0
votes
1answer
240 views

What kind of bike is this

Good day. Need help regarding a bike I found. No idea what kind of bike it is, does it have value or not, and could I have it restored with its current condition? Any idea/information about this bike ...
2
votes
4answers
3k views

Can I use a hardtail for MTB trail riding?

So, I have a tight budget of 600 USD. Now, I just wanted to say that I live in a big city, but I do want to ride trails more often. My intended use with the bike is to ride trails, and perform ...
3
votes
1answer
252 views

My santa cruz heckler ghost shifts from frame flex. Is there anything I can do?

I just bought a 2013 heckler used and found that it ghost shifts under heavy pedaling. I weight 230 so I am probably putting more pressure than average. But this only happens when I have smallest cog ...
6
votes
3answers
3k views

What's the strongest way to bond a cable stop to an aluminum frame?

I recently picked up another well loved GT road bike frame- it's in great shape aside from a missing downtube cable stop. The model is a ZR 4000 probably from 1999, it's 7005 heat treated aluminum. My ...
2
votes
1answer
639 views

650b for small rider?

I'm considering getting a bike for my friend; she is interested in riding road/gravel with me, doesn't own a bike of her own, and doesn't know too much about what's available. She is about 5 feet ...
1
vote
1answer
180 views

From Trek to Surly - advice on frame size

I have a Trek FX7.3, frame size 22.5 inches. I'm looking to swap the frame out for a Surly Cross Check. Has anyone done a similar build? Also, what frame size would you recommend that I go for? Just ...
3
votes
2answers
351 views

Should my aftermarket frame have a serial number on it?

I was riding a mostly custom WTP Crysis frame which had a serial in case the bike was lost or stolen. I snapped the drop out arms on Sunday and ended up buying a new FBM Hard Way frame. I checked all ...
4
votes
4answers
2k views

I have a hybrid bike which the frame is too big, is there any modifications I can make to make it more comfortable?

I bought a hybrid bike from halfords around 6 months ago, however i have only recently had chance to ride it. I have found that the frame is too big, they wont exchange or give me a refund. I was ...