Bicycle frame construction, selection, maintenance, and repair.

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1answer
83 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 ...
0
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3answers
131 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
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0answers
32 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 ...
3
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0answers
47 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 ...
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0answers
24 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
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1answer
59 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
90 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 ...
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0answers
25 views

What brand is my 20 bmx frame

Serial on bottom of crank case left side wen frame upright-F601W0135. Right side of crank when bike up right-HT-B01
4
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3answers
98 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 ...
4
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2answers
128 views

I bought a used 20 inch bmx bike from bike shop but no one has any idea of the brand

Could someone help me narrow this down? I bought a new-used bike from local bike shop in Sacramento, California, USA. I do not know what brand it is and so were the bike shop. There are no stickers ...
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votes
1answer
79 views

Where can I sell Shop Rags? [closed]

I have 2 boxes of Shop rags sitting in my living room. Each box contains 1000 cotton automotive Shop rags. The rags are brand new still in the box. Shop towels is the product that everyone working ...
0
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1answer
58 views

Converting frame size to wheel size

I've been trying to determine what size road or mountain bike I should purchase. All the charts I've found suggest what frame size I should have, but online shopping only lists wheel sizes. How do I ...
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2answers
139 views

What's this cotter pin on the barrel adjuster for?

I bought a new Salsa Colossal frame to build up and it has a cotter pin on the frame mounted barrel adjuster: If I turn the barrel adjuster too much, it is going to start digging in to the ...
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2answers
58 views

Can't figure out the correct wheelset size for my Raleigh Rush Hour to replace the stock wheelset

I'm trying to order a new wheelset for my Raleigh Rush Hour. The problem being that my bike is at a friends right now and it might stay there for a bit, I can't remember what frame size I have and I ...
3
votes
2answers
231 views

How do we understand if caliper brakes can be installed on the frame?

I have a hybrid bike and I am converting it to drop bars. My problem is, as I am going to install STI's, I need to change brake system as well. I am using V brake types, how can I understand if I ...
1
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0answers
33 views

Chain vs seatstay with a 50T Chainring - BMX frame

I plan to put a 50T chainring on my bmx but I am afraid to have an interference between the chain and the frame. Does anybody know what is the critical distance between the seatstay and the chain so ...
3
votes
1answer
58 views

What fork size is 32mm (inside diameter on the frame) considered?

Good day, I'm new to the whole bike building process, but I've finally decided to make the step and build a semi-nice bike. I've bought a really nice aluminium frame 2nd hand, but its sizing has me ...
3
votes
1answer
50 views

Dual crown fork or not?

I currently own a 2015 GT Verb Expert. And after watching a Red Bull rampage video I started wondering can I put a 200mm fork on my Verb Expert. Or does my head tube need to be more angled. And is it ...
2
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1answer
96 views

How to build a lugged fork [closed]

I have an idea to build a carbon fork with aluminium joints. I don't have any experience in frame building but I want to read about it somewhere. Is there any good literature about how to build a bike ...
6
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2answers
168 views

Should I worry about rain getting inside my frame?

I commute to work every day and lock my bike on the street. I have a nice saddle so I remove my seat post and take it into work with me. This obviously leaves a hole open to the inside of the ...
4
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3answers
158 views

Bicycle frame identify HELP

A few day ago I got this bike from a friend for a restoration. He thinks it's bianchi but I am sure it's not. It has Wienman brakes, simplex derailleurs, 3ttt steam, ofmega hubs and ofmega crankset. ...
6
votes
2answers
93 views

Lugged carbon frame repair

In broad terms, I'm wondering if it is possible to repair a high quality lugged carbon frame, say a Colnago C60, that has been cracked in the top and/or down-tube. Normally once a carbon frame has a ...
0
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1answer
68 views

What is the best gear ratio for speed on 20inch frame [closed]

I'm trying to figure out the best gear ratio for my 20 inch frame
4
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3answers
871 views

optimum frame size for very small 5'2" female

I have a lady friend who's interested in getting into road cycling. The smallest frame sizes I've seen so far in the market are 48 and, in one instance, a 47. Is this about the most common and/or ...
1
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1answer
79 views

I just bought a frame off this kid in my neighborhood but don't know who makes it?

I bought this frame off a kid in my neighborhood for 100$. I looked like a cool freestyle frame. I built the bike up and just wanted to know if anybody had a clue to what company makes this frame? ...
4
votes
1answer
113 views

When to change road bike

I own this Fuij Roubaix 2008 model road bike, its an aluminium frame with carbon front and rear forks. I already did 25000km on the bike and replaced wheels, chainring, a couple of cassettes, chains ...
4
votes
1answer
557 views

Am I too tall to bother modifying my old trek?

I bought an old Trek 500 series road bike a couple months ago and have put love and parts into it but it's just too damn small for me (I'm 6'4"). All the post adjustments are at their safest limits. ...
4
votes
2answers
105 views

Seat Stay Replacement - Bridgestone MB-3

I am working to restore my first mountain bike frame, a "vintage" 1993 Bridgestone MB-3. Early on, I swedged the left seat stay so that it buckled a bit & rotated about 15 degrees inward. I have ...
0
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1answer
199 views

Why are post ~'80s bike finishes so “dull”?

It seems that (with some notable exceptions) bikes from about the '80s and earlier seem to have more pleasing finishes than later bikes-- is there a verifiable reason for this, either economically or ...
8
votes
2answers
158 views

How to carry a step-through/mixte bike

How can one carry a bike with a step-through/mixte frame effectively?-- In comparison, any diamond-frame bike is a breeze for me to shoulder regardless of weight (okay, carrying a 25+-kg roadster is ...
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2answers
185 views

25 degree rise stem vs 6 degree rise stem with taller head tube - how is handling affected?

All, I’m shopping for a new road bike with endurance geometry (more upright position and shorter top tube), 9mm drop saddle-to-bars. I’ve had a Guru fit done by a professional fitter. The main ...
0
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1answer
76 views

Comfort vs comfort [closed]

New to the sport of cycling and considering two bikes. The Domane trek 4.3 Disc 2015 and the Domane 4.3 trek 2014 . It's for a 120 km event. Which would give more body comfort in such a distance ? ...
3
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3answers
224 views

Can an aluminium frame rust from the inside if water has been in it for some time?

My bike has been sitting out in the open for a few months due to lack of space. When I finally decided to strip it down and bring it inside, a lot of water came out of the frame. It could have been ...
1
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1answer
79 views

[MTB ]How much can my bike endure? [closed]

I recently bought a (Mountainbike) Bergamont Revox 3.0 and I'm concerned that I'm not taking proper care of it. I want to know if I can, for example, ride down a flight of stairs or switch the gears ...
5
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4answers
643 views

Advantages of mounting bottle under frame

I'm wondering if there are any advantages to mounting ones water-bottle on the bottom of the down tube, near the ground, versus on top of the tube. I'm mainly interested in the advantages, or lack ...
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2answers
81 views

Identify: 26in dirt jumper/bmx bike “fetish” brand?

I bought a 26in dirt jumper/bmx bike. No markings but the guy said it was a fetish. The set up is bmx but the frame looks like a jumper. Bmx cranks and dropouts. The serial number is SNFSD13BF1725.
3
votes
5answers
248 views

How long will this alum frame last?

I picked up this very cool 96-97 GT rage from Craigslist with the intention of restoration- a few rusty pinch bolts, spider eggs in the brake hoods, grinding bearings and pitted races, and all the ...
-1
votes
1answer
88 views

Can anyone identify this bike please?

I bought this bike at a police auction and it is all aluminium and I was told it is a track bike. The serial number under the frame is VISP120888 OR V1SP120889 On the crank it has 1R9CBA and R9FAA ...
4
votes
2answers
106 views

Brompton pump mount?

I have recently acquired a Brompton, which came with this zefal pump, which doesn't clip onto the frame: The rear frame on my Brompton doesn't appear to have the cage-like mounts that new models ...
0
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2answers
137 views

What are the advantages of having a aluminium frame? [duplicate]

are there any advantages that an aluminium body brings to the tables over carbon frames?
0
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1answer
81 views

Pitted rust on frame [duplicate]

Hello I have some small pitts of rust on my 1980 Raleigh royal frame. I don't want to strip the paint and sand blast it are there any non invasive treatments? Some of the chrome surfaces also appear ...
0
votes
4answers
127 views

Are 29“ and 26” bikes come with different size frames?

I am going to buy a cycle. In this regard I got my framesize 20". Now I would like to know is it for 26er or 29er ?? Is frame size will be different for 29er and 26er ?? I am going to buy a GT ...
3
votes
3answers
652 views

What's this part of the bike, and is it safe to alter it?

The video shows someone installing a gps bike tracker, however there is not much room in the top of the head tube, so he hammers down what's already in there in order to make room for the tracker. In ...
0
votes
1answer
68 views

How to fit forks to fixie frame [closed]

I have just ordered a fixie frame with no forks. I will need to order a set of forks and cut them correctly (to the right size) so I can install my headset. Are there any tips/ tutorials on how to ...
5
votes
2answers
170 views

How to stop the corrosion?

I have a silly question maybe.. How to protect the frame of my bike from corrosion? The bike is not new. Are there any accessories? Thanks
2
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1answer
258 views

chain stay protection on carbon frames

I am worrying about this type of protection against chain sucks. After 1-2 months with a new Cannondale F29 2, I've found out that this part was not where it should be. Instead, the chain did it's ...
1
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1answer
52 views

DIY Bamboo bike? [duplicate]

I am wondering whether or not I can build my own bike. I was thinking of buying some steel lugs or maybe carbon ones or whatever off the internet, and a steerer tube too, and was hoping I could ...
1
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2answers
475 views

What is the weight difference between frame sizes?

I was wondering if any one has an idea of how much more weight a larger size bike weighs. Specifically S-works Tarmac. So for example what would the difference in weight be between a 56 compared to a ...
0
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2answers
214 views

Can anyone help me identify my bike please?

Can anyone help me identify my bike please? It has a slight story attached as it was one of the bikes in the new Lance Armstrong film. It was badged up as a Gazelle TVM (and as far as I can see, ...
1
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1answer
226 views

What model and year is this bike?

What model and year is this bike? Stickers/Decals say Cannondale but not 100% sure if it is. I have looked at catalogues of cannondale from 1997 to 2010 and can't see this bike. If anyone could help ...