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Questions tagged [frames]

Bicycle frame construction, selection, maintenance, and repair.

5
votes
1answer
338 views

How serious is the dent on alu frame?

I have crashed on my cyclocross bike and got a dent on it's alu frame. I don't see cracks. How serious is this dent? Can it lead frame to suddenly fail?
0
votes
0answers
94 views

Monstercross gravel bike: Will a Salsa Warbird frame fit 45mm Riddlers on wide 28mm rims?

Will 45mm WTB riddlers on wide 28mm internal width rims fit between the rear chainstays of the Salsa Warbird? I'm building a set of monstercross wheels for my Salsa Warbird, but before purchasing the ...
2
votes
1answer
110 views

Measure seatpost diameter on frame / Raleigh granada 1986

Yesterday I saved a Raleigh granada frameset from 1986. It's in ok condition but without any of the original parts. The plan is to build it up with leftover parts. So no original restauration on this ...
0
votes
2answers
144 views

Did I damage my frame by removing a sticker?

I’ve just bought a new bike with a matt finish, and peeled off a sticker from the top of the frame - but this revealed a shiny finish underneath. Is this a problem, and do I need to do anything ...
3
votes
2answers
56 views

Surly Trucker Disc Compatibility with Ryde Taurus Rims

Is it possible to put these Rims (Ryde Taurus 21 Disc: 26', 21-559) on this frame (Surly Trucker Disc)? I just cannot find any hint at the Surly Trucker description, but since I am not a native and ...
2
votes
1answer
267 views

Part name: what is this attachment point for on my new Cube carbon frame?

I've got a new fully today, and there is one attachment point on the frame that I cannot identify. Perhaps it's a silly question, but I've given up after 20 minutes of googling :)
0
votes
1answer
87 views

Drill into steel frame for cargo rack

So I have a bike without pegs for the mounting of a cargo bike rack. It is a steel frame so I was thinking of installing make-shift pegs myself. Is this going to breach the integrity of the frame? ...
1
vote
0answers
97 views

does anybody recognize this mtb frame?

I just got this frame for a few bucks and I wonder if it is from a known manufacturer or not. I often find bikes with similar design aspects, but not this frame. There was also a Marzocchi 55 ETA from ...
0
votes
2answers
159 views

What's that frame ? I can't find anything about it anywhere

I've got no idea what frame that is, or when it's been made. If anybody knows anything about it please let me know
7
votes
3answers
2k views

Bike with a hi-ten steel frame for getting around the city?

Recently I bought a new bike which has the following characteristics: Size of frames: M (44cm) / L (48cm) / XL (52cm) Wheel size / Number of gears: 26 "/ 21 Frame: HI-TEN Steel Fork: HI-TEN steel ...
1
vote
4answers
107 views

Protect chipping frame from metal bike lock with Sugru

What's the best method to stop a Kryptonite Mini d-lock scratching/chipping an aluminium frame? Stickers have already been applied as a first layer of protection. Is there something similar to the ...
-3
votes
2answers
165 views

Can anyone tell me what I've inherited here?

This is classic for my town. I'm trading this bike for a 4 Runner and would see if its even up to par. I'm not one to hit and run, as I'm usually the one getting hit, but maybe this guy is better than ...
-1
votes
2answers
81 views

How can I learn to recognize good geometry on a bike frame?

If I look at the frame, and I see a nice "beaded" weld, how can I know if the rest is "bad"? Is there a way to tell from the geometry of the frame somehow? How can you tell by looking or with a ...
1
vote
2answers
239 views

Scott Aspect 700/900 frames

Do I understand correctly that Scott Aspect 700/900 series use the same frame and the difference between the 910 and 960 are in other components? https://www.scott-sports.com/global/en/product/scott-...
2
votes
2answers
180 views

Can this damage to my brake mounts be repaired?

So, I tried to take some brakes off of a bicycle to change my old-style callipers with V-brakes; the results were not good. One of the "heads" or "lugs" was so caught in brake itself that I managed ...
4
votes
1answer
653 views

What to do about damaged bike frame

I recently bought a used bike from a police auction that had a nasty cut in the frame (presumably caused by a angle grinder or something similar). Should I be worried about the bike's structural ...
7
votes
1answer
203 views
8
votes
7answers
4k views

Is it worth buying carbon fiber road bike for short commutes?

I'm planning to use a bike for rather short commutes (max half an hour), will the carbon fiber be noticeably more comfortable than aluminium one?
1
vote
2answers
1k views

BB height when change 29er wheel to 27.5 wheel

I have a 29er frame Specialized Camber Expert Carbon EVO with 330mm BB height with 120mm 29er fork How much with the BB height be altered if I change to 650b wheels and 27.5 140mm fork? EDIT The ...
2
votes
1answer
211 views

134mm rear dropout spacing on Al frame

My bike has an aluminium frame and I measured 134mm rear dropout spacing. The wheel it came with has 130mm OLD. The dropouts are quite a bit flexible, the QR pulls them in on tightening. This is the ...
0
votes
0answers
98 views

What are the most common frame materials?

Does anyone have stats on how many bikes overall there are worldwide based on frame material? Either percentage or count would be sweet to see. Bonus if it's broken down by country-level and/or type ...
-2
votes
1answer
106 views

Find my frame game :)

I need a little help to find out what brand this frame is. Components info: Complete Shimano Dura-ace black first gen (GA-200) except front and rear hub from Campagnolo. Wheels are old Weinmanns. ...
2
votes
1answer
273 views

Replacing bike frame on BMC Alpenchallenge AC01

I have a BMC Alpenchallenge AC01 IGH Alfine 8 Speed 2017 size small. Although the size is appropriate for me, I would prefer the medium, but the small was 47% off, so I bought it. Now I have the ...
2
votes
3answers
543 views

Bike Frame Size for MTB Leisure Rides

I am looking to buy a bike for my wife on the internet, but the challenge is I do not know what frame will be most suitable for her. We plan to buy a hardtail for leisure rides on the weekends so we ...
5
votes
2answers
240 views

How do I check my steel frame for water ingress, and minimise the risk of rust?

I have a bottle cage on the upper side of my downtube, and yesterday I noticed that one of the screws has gone missing. I don't know when this happened, but it could have been months ago. I often ...
0
votes
1answer
82 views

What kind/model is this frame?

Can someone help me what kind of alpinestars bike frame is this, and where it is manufactured? Just got it a year ago.. I've already search alpinestars website but couldn't find this exact frame.. ...
1
vote
1answer
112 views

Durability of Seat and Chain Stays on steel frame touring bike

I've been toying with the idea of mounting a dynamo on my REI touring bike. Model is ADV1.1 and it has a steel frame. Dynamo attaches by a mechanism that clamps onto a seat stay and tightens with two ...
1
vote
0answers
129 views

Can anyone identify this second hand bike?

I am looking into getting a new (for me) road / TT bike and this came up but I think it isn't a Specialized Shiv... many thanks
3
votes
2answers
336 views

What to do with the new parts on an old bike I want to dump?

Three years ago I bought a second hand bike, which I used for cycling on average 10 miles a day (mostly commuting). It turned out to have many problems, so over time I replaced many of the parts on it ...
0
votes
1answer
244 views

Gitane Frame Identification Year [duplicate]

Was wondering if anyone can verify year of the Gitane frame Thanks Damian
4
votes
3answers
132 views

Size of old road frames compared to new ones

May I use an old frame (pre 1990) of same size as a modern road frame? For example by using a long stem and long seatpost. Or would I have to size up a lot? Concrete example: I ride a 56 cm Merida ...
5
votes
3answers
1k views

What is the potential danger of riding bicycle with cracked chainstay and how to fix it?

I got a bicycle that has this big tear in the chainstay. Is it safe for city riding? What is the potential danger? What could someone have done to cause this kind of damage? Most importantly what ...
-1
votes
3answers
241 views

Can I upgrade my XC bike with a full-suspension, carbon fiber MTB frame?

I want to have a full-suspension bike, but since I already have a XC bike with very light, high-end components, I thought it might be cheaper to buy a new frame that supports rear suspension, buy a ...
2
votes
3answers
436 views

How do I know if a given hardtail mtb frame is 'supposed' to have suspension forks?

How do I know if a given hardtail MTB frame is supposed to have suspension forks? I read somewhere that if you want to convert a suspension bike to a rigid you need 'suspension corrected' forks which ...
5
votes
2answers
2k views

What do you do if you find your stolen bike's frame on ebay?

I am 85% certain that I see my bike's frame on eBay. It costs almost 2k with all the components and I see the frame on sale for $400 with seat-post and fork only. All my stickers not in the pictures(3)...
4
votes
1answer
353 views

Dent in titanium MTB frame, is the frame OK to ride?

I have a early 90s Basso Ti Hardtail MTB bike (made by Litespeed I believe) which I bought from my room-mate back in the day. I've kept it going with regular maintenance and occasionally replacing ...
1
vote
1answer
145 views

Commuting bike with the bowed top tube

Those asian bikes that have the curved top tube? What are the pros and cons of having that kind of frame design? Are they uncomfortable in really long rides? Do they flex or bounce too much? In ...
2
votes
4answers
123 views

Choosing frame size when still growing

I am about to purchase a 2018 Kona Sutra touring bicycle but I need some advice on how to know which is the right size for me. My measurements are 174cm tall with a 79cm inseam. I was advised that a ...
3
votes
2answers
173 views

On frame geometry: does it matter so much?

I bought my MTB without much thought, really. I wanted a hard tail but thats about it. Now I'm researching on whether my bike is appropriate for xyz application. I've been looking at frame geometries. ...
7
votes
4answers
2k views

Installing a Bottle Cage without Mounting Screws/Threads

I have a Next PX 6.0 mountain bike that I bought at Walmart a few years ago. It did not come with pre-installed mounting screws and/or threads for a bottle cage. The frame has large, strangely ...
3
votes
1answer
183 views

Difference between a professional bike restoration place respraying and power coat company?

Ok, Apart from they're a specialist so they can do decals, coach lines, rebuild/strip the bike, is there any difference in how they would paint it? The professional places charge £200-300 (UK) to ...
3
votes
1answer
158 views

What are a 'coach lines'

So contacted a bike restoration place for a quote to respray my BSA, the guy asked me do I want 'coach lines'. Too embarrassed to ask what they were I just said yes. So what are they exactly?
1
vote
2answers
455 views

Phillips brand c1950? Please help me identify this awesome old frame!

Here is all I know: Seems to be a 26" frame. Lug construction on main frame but the seat stays are bolted on. Serial number at seat clamp: 3051CT Has strange hole in bottom bracket shell. "Made ...
4
votes
1answer
134 views

Carrera Virtuoso Rear Derailleur hanger bolt hole with HeliCoils?

So, I broke a Shimano Sora rear derailleur last night... Ouch, there goes a load of cash... What had happened was the hanger was bent slightly inwards, yet was functioning fine, so I rode it home. ...
3
votes
0answers
295 views

Help identify this loop frame bike

I'm trying to find out more information about this old loop frame bike I'm planning to refurbish. I haven't found any other marks that may be identifying, if there's anything else I can take a photo ...
4
votes
1answer
139 views

Vinyl Frame wrap

Hi all odd question but here goes. I know there are many options in frame restoration powder coating respraying hydro dipping etc etc but these all cost money I don't have. What I do have is lots of ...
0
votes
1answer
254 views

Panniers on front suspension forks [duplicate]

I currently have four panniers (two front, two rear) on my touring bike and plan to purchase a new touring bike which comes with front suspension forks. Is it possible and if so, safe to add front ...
2
votes
2answers
976 views

What are the advantages (or dis-) of the GT triple triangle frame?

Like this one, for example. Is there any plus or minus to this frame design? (I'm shopping for an 80s/90s steel frame bike and the GTs may be a possibility. It turns out I kinda like a horizontal ...
1
vote
2answers
117 views

Mounting mini-pump on frame

I recently bought a mini-pump from Amazon, it was very cheap and, so-far, I'm pretty impressed with the build quality. I never intended to mount it on the bike but then realised that it came with a ...
4
votes
1answer
1k views

What brand of frame do I have?

Would anyone be able to help identify the make of my bike frame? There's no branding on it and I built it up custom using different parts. I've never been able to find out what the make is and am v. ...