Questions tagged [frames]

Bicycle frame construction, selection, maintenance, and repair.

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0answers
31 views

BMX bike brand frame

Can you help to tell me what this frame is
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1answer
128 views

What brand of frame has a star cutout behind the seat?

What bmx bike has a star cut-out just behind the seat? sealed bb.
2
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2answers
63 views

How is chainstay length defined for frames with horizontal dropouts?

Just reading our own definition of Chainstay Length in the terminology index. It is written currently as the distance between the centre of the chainring and the centre of the rear cog. This is ...
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0answers
26 views

Rear shock mounting hardware for Felt Virtue 2015

I recently bought a Felt Virtue 2015 aluminum frame. Just wondering if anyone else who bought the same frame have the correct sizing for the rear shock mounting hardware. For reference this is the ...
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1answer
64 views

How to treat rust spots on a steel frame without stripping the paint completely?

I have a 1974 steel French road frame and most of the original paint is still intact. However, there’re quite many 1-2 cm surface rust spots. I also recently had one of the lugs partly re-brazed and ...
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2answers
129 views

Bought a frame one size larger, how to fit for slightly smaller rider?

I've recently bought a frame that is about one size larger. It's a 22" frame and my height is about 5'9". I had a choice between the 22" frame and an 18" frame so I chose the frame that was a bit ...
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3answers
66 views

Identification of non-standard frame feature and suitability of frame for mid-drive e-bike conversion

My question comes in two related parts: firstly, what is the piece of folded, drilled metal projecting rearwards from the lower bracket in the photo above? Secondly, does this piece of metal have ...
1
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1answer
176 views

Bike too big or just fine ? modification required ? Need pro advice

Hi I accidentally refer to wrong bike fit and purchase online a 20" Frame Mountain bike (XC hardtail)! While the bike is about 20" (51 cm) Frame , I'm about 175 cm (5 foot 9 inches tall and go 79.x ...
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2answers
111 views

Can you change your skewer frame into to thru axle one?

I have a frame that uses QR skewers. Can I modify the frame to use thru axles?Has anyone done it??
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0answers
88 views

Help in identifying our newest project

Any help getting info on this bike would be great. Only tags/badges are a Japan stamp and a diamond with a 5 in the middle under the frame. Thought maybe a Japanese knockoff from Schwinn but the bars ...
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2answers
214 views

What type of bicycle frame is this?

Need help with identification. If anyone knows what kind of bike has the rear fender built in to the frame, that might help.
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2answers
131 views

Is “touring bike” a common term in the USA?

Just researching some bikes online and, being from the UK, I cannot find any bikes on US websites called 'touring bikes', as we'd commonly call them in the UK. By this, I mean bikes which come with ...
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1answer
136 views

Remove stickers and decals from frame

I am trying to remove the stickers/decals so I can repaint the bike. I have tried scrapping, paint thinner, and xylene. I also tried using a heat gun, but the process seems rather tedious. Is there ...
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1answer
33 views

Identify tandem frame with no LK99040060 [duplicate]

Looking to identify my tandem frame It was bought without decals and buyer claimed it to be a Gary Fisher but I want to know for sure before I have it refinished. It has eccentric bottom bracket ...
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3answers
628 views

Is this crack on my seat stay mechanically safe?

Recently picked up a steel frame and realised there was a crack on one side of the rear triangle, right by the seatpost. Crack seem to be contained towards the outer part of the tube so does not seem ...
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3answers
157 views

Can a Mamachari be fitted with an 11 speed 52-36T crankset and FD?

I would like to upgrade this bike with a better and faster crankset, 52-36T, but I'm confused if my planned setup will be compatible with the bike I have. I have consulted in our local bike shop and ...
3
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0answers
140 views

Scrap it or not

I purchased this Bottecchia full-carbon frame a a few years ago and built it up using Shimano 105 components. Shortly after the build was done it came off the rear mounted rack on my car and went ...
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1answer
75 views

How can I identify my bikes make through the serial number?

I can't identify my bike so I was hoping someone could help me... The serial number is AX365316
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2answers
626 views

Install suspension forks on non-suspension bike

I have a 1990s Saracen PowerTrax. Is there a way I can install a suspension fork, or will that muck up the bike somehow? I'm actually interested in ways to raise the bars with respect to the seat, so ...
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1answer
61 views

What is the age of my columbia clippe bicycle, maunfactured by westfield Mfg.?

My bike is a columbia clipper manufactured by westfield mfg. Crank bottom serial # starts out B...083 can anyone tell me its age. I'm in the process of restoring it.
3
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1answer
216 views

How to / is it possible to straighten a bent seatstay/chainstay on a steel frame? At home or inexpensively by a professional

I have a Genesis Croix de Fer 20 (725 Chromoly) and crashed with my friend on his bike. On one side the back of the frame bent out so the wheel drops out, it is bent but not crumpled. I would like ...
4
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2answers
167 views

How important is it to re-space my rear hub?

I just bought new wheels for an older Schwinn frame. I don't know the date it was made, but it's a steel frame and as built it had stem shifters and a cup-and-cone bottom bracket, etc. Probably from ...
3
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1answer
236 views

Identify this BMX logo please?

Hi all, having trouble identifying this logo found on my Bmx frame- any ideas? Many thanks More info: It was bought with all high end parts- and was said to be WTP Justice or other WTP frame—...
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4answers
251 views

Can this frame be used or is it done?

I have a cheap mens Huffy mountain bike which I noticed has 2 holes in the frame. Would this be too unsafe to ride?
2
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2answers
249 views

Is this damaged aluminium frame unsafe to use?

Hello I have a Giant Seek 3 aluminium frame where somehow the rear rim has rubbed the frame creating a hole as shown in the picture. On the other side there has also been some rubbing/scratching but ...
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2answers
146 views

Can you tell me what this frame is and year please

I need to identify a bmx frame i have Its a twin top rail
2
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2answers
554 views

Bent Peugeot Carbolite 103 Frame

I have a vintage Peugeot carbolite 103 frame which is really bent. The rear triangle is bent in the direction of the drive side to such an extent that the drive side crank arm is blocked by the frame ...
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0answers
116 views

Can anyone give me some information on this Peugeot frame I bought this weekend?

I've been looking through old Peugeot brochures and searched the numbers on the frame but I cant find any pictures of any Peugeot bikes that look like this one. The chrome section with the flags of ...
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5answers
3k views

Frame failure sudden death?

I had a serious accident, my fork suddenly snapped when riding. I sent my bike for repair (to get a new fork installed) and the guys at the shop hammered the frame in place, as apparently the frame ...
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1answer
280 views

Why would a frame lack serial numbers?

Other than being a custom frame or it was stolen is there a explanation for the frame to be missing the serial numbers? For instance do they use the same identification marks over seas?
3
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1answer
153 views

Help identifying make of steel elevated chain stay mountain bike frame

Could anyone tell me what is the make or model of this bike there are no visible numbers or name except for this sticker of the maker of the seat tube. I appreciate all the help. you guys know your ...
2
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2answers
142 views

Help please - Dent in top tube of double butted aluminium frame

I have a ridgeback velocity which is labled as double butted aluminium. Around the middle of the toptube is a dent shown in the photo. There is also a short line above it which I can feel with my nail....
6
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1answer
98 views

Prevent internally-routed cable housing from vibrating against frame

The rear brake cable and housing are internally routed through the top bar of the frame. It rattles around when riding on bumpy roads and sounds annoying. What's the best way to mitigate this?
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1answer
80 views

Frame identification

Any idea of the maker of this carbon frame, if more photos needed just let me know
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3answers
462 views

Frame adjustment for engine

I want to turn my bike into a motorized one, but i can't get engine clearance because the 2 tubes in the picture are so wide on my bike. I was wondering if I cut those tubes and replace them with ...
3
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1answer
242 views

What bicycle manufacturer used this emblem

The top bar has the model name "AMERICANO" but I don't know the name of the frame manufacturer. I would appreciate your help identifying it. Thank you
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2answers
164 views

Cracks in paint on aluminum frame

I noticed some small cracks in the paint on my aluminum frame bike. The cracks are clustered around the rear brake boss, and only on one side (NDS). The bike is from 2011 and has been ridden over 10,...
4
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1answer
173 views

“bent” by design frame

Lately I have been looking on new bikes, and I have seen some design on an aluminum frame which left me quite dubious: That bend seems to scream "I am gonna buckle at the first hard hit!". Are my ...
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2answers
103 views

What is the best way to raise handle bars

I have bought a second hand 19 inch frame and I am normally used to a 20.5 inch. The bike rides OK but I would benefit from raising the handlebars. I have read about fork steerer tube extenders and ...
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1answer
113 views

Hi, I'm looking for some help in identifying this bike frame?

I'm looking for some information on this bike, it's a steel frame road bike with chrome dropouts the rear ones are SR suntour ones, theres no badges or decals on it it was like that when I bought it , ...
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1answer
244 views

I'd like to know what kind of bmx bike I have

I got this frame in an old pile of junk ,can you please let me know what kind it it t/y
4
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3answers
897 views

How to assess safety of carbon frame after crash?

I was recently hit by a car which pulled onto a roundabout. The driver hadn't seen me. The car hit me hard enough to actually snap the rim of my rear wheel. The bike has a carbon fibre frame and ...
1
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1answer
72 views

What kind of fork end is this?

I am looking for a new city/urban bike and thought that a gear hub would be a nice addition (before this I was exclusively using derailleur gears). To get started I was reading the wiki page on fork ...
3
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2answers
141 views

Identify this bike please

What kind of bike is this? Looks like it says Tornado. I love the handles - what kind are they?
3
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3answers
161 views

Rust hole on tube between chain stays

I've inherited a frame my father used to ride and was planning on getting it blasted and coated. Checking it over it all seems to be in fair condition (its decent 531 Reynold tube), some rust, but ...
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1answer
358 views

What kind of bike do I have? Serial number is VF-8S3-20.5-9 [duplicate]

BMX frame has two holes on front tube for forks.
2
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1answer
241 views

Rear wheel touch frame during off saddle sprint

bike: Cervelo S2 Photo wheels: Mavic Cosmic Pro Carbon (wheel is true) tyres: Continental Grand Prix 4000S II 23mm Problem is that during off saddle sprint my rear tyre touch the frame and makes ...
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0answers
108 views

Replace Viner Settanta seat post securing wedge

My seat post wedge has been removed. There seems to be loads of different styles and shapes depending on the make and model of frame. Does anybody know if any other makes will fit it as having trouble ...
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2answers
150 views

Are my frame and fork straight?

I have been riding bikes and motorcycles since I can remember. Doing no hands is no problem, my question is with this particular generic bike frame that I built: I cannot do no-hands riding. Is the ...
1
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1answer
163 views

Frame with dent

I recently bought a bike and then realized it had a dent on the top tube. I would like to know your opinion if it is safe to ride. The bike is a Devinci Cameleon made from double butted aluminium. The ...