Questions tagged [frames]

Bicycle frame construction, selection, maintenance, and repair.

Filter by
Sorted by
Tagged with
6
votes
4answers
626 views

Will grooves on seatpost cause rusting inside frame?

My bike has grooves in the seatpost as shown in the picture. The grooves do stop slightly further down the post, but the best saddle height for me is when the grooves partially go down into the seat ...
0
votes
0answers
43 views

What is this BMX?

I got this bike from a friend for free. I was wondering what brand could this bike be? Has Quando Hubs, Odyssey Pedals, Kenda Tires but no logo on the actual body itself.
1
vote
2answers
85 views

Is it possible to fit a 26" fork to a 29er bike frame

I want to buy a cheap frame and put parts from my old 26" (wheel and fork) and 15" (frame). Is this possible.
0
votes
1answer
75 views

Where purchrase cheap MTB frame? [closed]

I recently bought a Merida HT matts sub 60, and I like it but sadly it's way to big for me, I purchrase it more for the components since it was really cheap. I'm 165cm, and probably need 16inch frame, ...
1
vote
3answers
131 views

Bike identification

I am trying to identify this bike. It has a club cutout in lugs and 4 card suits on inside of fork crown. Frame's serial number is 75390. Also has direct frame mount above rim mafac Brake bosses. ...
0
votes
2answers
57 views

Will a 11-speed cassette fit my Giant SRC 3 frame (~2007)

I would like to upgrade an older Giant SRC 3 (~2007). Having a very limited experience with bike mechanics, how will i find out whether a 11-speed cassette will fit the frame and or the wheels?
3
votes
2answers
125 views

Effects of rust on steel frame strength

I have some rust on my front forks. This question tells me how to deal with it, but I'd like to know whether it will be impacting the structural integrity of the forks. I'm planning on going touring (...
5
votes
1answer
564 views

Bike seat tube is messed up

I was testing my seat and as I was sitting on the bike on the highest level of the seat post. My seat post came off and bent my seat post, so I ordered another, but now my seat tube doesn't allow my ...
6
votes
3answers
381 views

Does a highly visible frame colour improve safety significantly?

Studies have shown that wearing hi-viz colours, particularly on moving extremities such as one's feet, coupled with hi-viz helmets and cycling shirts, increases the chance of been seen by a driver ...
2
votes
1answer
215 views

Interesting frame, not sure what I got

I just bought this nifty looking bike, but alas I don't know the manufacturer or model it is. There's a logo with a silver looking "Z" and a made in Taiwan sticker. Any help you can provide ...
11
votes
7answers
3k views

What are the most basic parts of a bicycle which cannot be upgraded over a period of time?

After reading this question: Cheap MTB with future upgrades v/s costly fully ready MTB, I myself had a question. What are the most fundamental parts of a bicycle? What are the things which we have to ...
8
votes
1answer
87 views

How do I install this Ribble endurance SLR headset?

I've installed the bearings and now I'm struggling with which order to stack things. I can't find any documentation or manual of any description. I've attached a few photos. Does anyone have any idea?
1
vote
2answers
97 views

Road bike (commuter) frame size problem

My height is 5'9", leg Inseam is 32". My bike frame size is 52cm, is it the right size? If it not then is there a possibility to get injured? I have no option left. I already purchased the ...
0
votes
0answers
65 views

Dent in Lower Aluminum Frame Of Cannondale Cyclocross

Recently purchased this bike second hand. How concerned should I be of this dent? It’s about midway down the lower frame.
5
votes
2answers
192 views

Chain rubs against frame when in smallest rear cog

I've set up a 12-speed SRAM Force groupset with an XDR cassette. When in the smallest rear cog, the chain rubs against the frame: Does anyone know what causes this and how to fix it? The frame is a ...
0
votes
1answer
25 views

What bottom bracket will fit the Ribble Endurance SLR?

Will a Shimano Ultegra BBR60 bottom bracket fit the Ribble Endurance SLR frame? I cant seem to find any technical information on the frame anywhere?
1
vote
0answers
39 views

bike-frame-jig: customizations of a standard model - interesting features added [duplicate]

good day i am in the mid of creating a bike-frame-jig. the model is oriented at tanner w s jig: https://www.instructables.com/id/Bicycle-Frame-Building-Jig/ see some the parts (here as Acronyms ) he ...
0
votes
0answers
114 views

Can anybody help me identify my road bike frame? [duplicate]

The serial number is located under the bottom bracket and its C0 30 402322. It was repainted and the fork is also been replaced. It has the downtube shifter mounts on it with braze on front mech ...
5
votes
3answers
161 views

Zip ties to hold smart-lock on frame

I've recently bought a smart lock for my bike that can be mounted directly on the frame. Problem is that my frame has no hole for screwing it on the frame. So I improvised with with 3 zip ties on each ...
1
vote
0answers
74 views

Trying to estimate cost of replacement for a stolen bike [closed]

The frame says "Nova" and "Columbus". I don't know the serial number. I believe the frame is aluminum. Purchased 2nd (or third) hand in California about 6 years ago. Above is a ...
3
votes
3answers
93 views

Replacing frame on mountainbike

Today while riding on a trail, the frame of my full-suspension MTB broke. It's been a long time coming, and at this point I'm happy that it didn't 'catastrophically' fail / I didn't crash. I think ...
6
votes
2answers
197 views

Can and should one install rivnuts into an aluminium frame?

I have an aluminium frame, and would like to add another bottle cage. But there are no mounts below the downtube. I've installed rivnuts into a steel frame before, which worked well. Can I install ...
0
votes
1answer
71 views

Tire compatibility [duplicate]

My bike has a 19.5 inch frameset (49 cm) and rolls on a pair of 26 x 1.75 BTWIN Trekking tires. I want to go for thinner tires and I came across a set of 27.5 x 1.2 tires on the Decathlon webpage . I ...
1
vote
1answer
78 views

Method to remove and prevent rust on a Reynolds 531C bike frame?

The frame of the 531C Reynolds tubing is rusting, What is the most appropriate method to remove and prevent the rust? Would it be removing the rust and repainting? If so could you like me to resources ...
18
votes
6answers
5k views

How is this damaged aluminium frame likely to fail?

I had an unplanned collision with a car yesterday (everyone is fine, thankfully) but my bike – a Giant Revolt 1 – now has a lovely new pair of dents. I cycled it home from the collision (~6km) and it ...
4
votes
3answers
289 views

Properly sizing a frameset online (Ritchey Road Logic)?

Longtime lurker, first-time poster. My frame is cracked and I have mostly decent parts so I am thinking about just buying a frameset and paying the LBS to move stuff over. A friend suggested I look ...
0
votes
1answer
163 views

Are bikes with sloping top tubes lighter than bikes with horizontal top tubes?

For many years bicycles nearly universally had horizontal top tubes, but that has changed: now most bicycles have "compact" geometry, with top tubes that slope downwards from front to back. ...
1
vote
1answer
108 views

Can anyone help me identify this bicycle frame?

I recently bought this frame from a gentleman who bought a closed bike shop and builds and sells bikes from his 10 or more sheds full of parts. He teaches his church youth kids to build them as a way ...
-2
votes
1answer
78 views

Santa Cruz but idk which model and year, please!

Hey can someone please tell me the model and year of this Santa Cruz frame I just bought... thanks!
3
votes
3answers
487 views

Correct frame size, will 56 and 58cm work?

I'm new to bicycling (I have a 7 speed HEAVY beach cruiser I use for 10-20 mile rides). I am looking into used road bikes now. I checked several places to measure what size frame I should get for a ...
3
votes
0answers
132 views

Help Me Identify My Uncle's Old Elevated Chainstay Bike

Please help me identify my uncle's old bike. I will greatly apppreciate all of you that willing to help mi. Thanks to all in advance who help!
3
votes
1answer
79 views

my first frame jig - a customized one - which addons and features to add?

i am currently workin on the Bicycle-Frame-Building-Jig that is designed by tanner W at Instructables https://www.instructables.com/id/Bicycle-Frame-Building-Jig/ which bottom bracket assemblies ...
7
votes
3answers
2k views

Broken rear brake - told it was unfixable

I have an older model Trek mountain bike. I took it to the shop for an annual tuneup and they called me to say that the rear brake broke off the frame and that it can't be fixed. The entire brake is ...
3
votes
2answers
47 views

Rockshox Pike Scratch

I have a rockshox pike with scratches on the fork stanchion. I would like to know if there was anything I can do without buying a new one. Any suggestions would be greatly appreciated! Here is a ...
2
votes
2answers
217 views

Can someone help me identify this bike frame?

I just scored this bike out of a storage unit auction. I've seen very similar frames like it before. I own a Transition Sentinel myself and my guess is that this is a Transition Scout but it has a few ...
1
vote
0answers
76 views

Help identify a frame

could someone help me identify a mountain bike frame, the rear triangle of the frame has square tubing, it's a late 90s early 00s frame.
1
vote
2answers
141 views

Are rear triangles made today made of thinner / less substantial materials than in the past?

I read this question posted by someone else (details below) but without any response: One thing I've noticed about newer bikes vs bikes like this [referring to a Specialized Hardrock aluminum frame ...
5
votes
1answer
75 views

Hollowtech II BB alternative for stripped frame threads [duplicate]

I removed the BB (Shimano BB-93) from my Canondale Trail and found the drive side thread is stripped on BB and frame. See and What are the options for me to replace the BB? Is there an alternative ...
2
votes
0answers
22 views

Options to fix a stripped driveside BB thread- Shimano BB-93 [duplicate]

I removed the BB (Shimano BB-93) from my Canondale Trail and found the drive side thread is stripped on BB and frame. See and What are the options for me to replace the BB? Is there an alternative ...
-1
votes
1answer
78 views

Can anyone help identify this stamp please

Need help to identify this bike please
1
vote
0answers
177 views

Help me identify bike frame. Repainted, but have serial number

I got this bike second hand, accordingly to the previous owner it should be a rocky mountain. He said that he repainted the bike and created new stickers for it. I couldn't find a similar rocky ...
1
vote
1answer
81 views

Bottom bracket compatibility

After two LBS's, a blowtorch and a tyre shops impact driver I finally have my bottom bracket out. It an aluminium frame if that makes a difference. On the drive side some of the thread is gone, ...
0
votes
1answer
83 views

Can anyone tell me what make or brand this frame is? [duplicate]

I can't figure out who made this or what brand maker it is. It has the serial number and on top of it it has a different number. G0Q230-2 Wbdo26l0431p
0
votes
5answers
205 views

Why are bicycles triangulated at the back but not at the front?

I know that triangulation of structures makes them stiff. Why are bicycles stiff at the back but not at the front?
5
votes
2answers
394 views

How can I repair carbon damage near my bottom bracket?

I have had a few gnarly chain-drops that ate at my Open U.P. carbon frame. I thought I just had some chips in the carbon, but today I removed my crank for a full bike clean and realized that the ...
3
votes
0answers
110 views

Void in carbon frame seat tube, is it dangerous?

While assembling a carbon bike, I found this void in its seat tube. It's about 1/2 inch X 1/4 inch in size and I'm guessing almost a third to half the depth of the tube wall. Since it's right next ...
-1
votes
2answers
129 views

I need to find out what type of bike I have I just got it

I need to find out what type of bike I have I just got it
1
vote
3answers
783 views

Can anyone help me with identify this Giant bike?

I need a name for this bike so I can look into it. It's going to be sold to me but I don’t want to get ripped off. Thanks!
4
votes
1answer
136 views

Identify vintage bicycle brand

I don't know much about bicycles but I came across one that I want to offer to my nephew since he is into vintage race bikes. I would like to know the original brand of the bicycle/frame since I want ...
4
votes
2answers
165 views

Why can compact frame in road bikes be made in less sizes than the traditional frame?

When I read about Giant, they talked about how in the past road bikes have to be in like 10 incremental sizes, but Giant had an idea from a mountain bike (which usually only have S M L sizes) to make ...

1
2 3 4 5
14