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Questions tagged [diy]

D.I.Y. is an acronym for "Do It Yourself". Questions here are resources for enthusiastic amateurs working on their own bicycles.

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Are Shimano chainring/crankset protectors easily removable?

Are Shimano crankset/chainring guards/protectors easily removable? In other words are they fastened with some screws/bolts or are they riveted? I am most interested in the Acera(M361) cranksets or ...
WornChain's user avatar
  • 2,201
1 vote
0 answers
35 views

Aligning wheels for heavy duty bike trailer

I'm planning to build a bike trailer capable of carrying about 120kg. My initial thought was to use decent quality double-walled 20" BMX front wheels with the axles supported on both sides. I'd ...
Vinnie Testeverde's user avatar
4 votes
1 answer
223 views

CNC'ing Strong Hub Shell (Kindernay Swap Cage)

The Kindernay Swap Cage is a removeable hub shell that is a bit delicate for loaded touring. The HD (Heavy Duty) Swap Cage never made it to market. I'd like to make one that's near indestructable. It ...
daddyblondlegs's user avatar
5 votes
1 answer
229 views

How do I securely fix a string of LED lights to a power source?

My context is that I have a cargo trike (Babboe Curve). Especially in the winter dark, some car drivers mis-identify it as a bicycle and pass it too close. My solution to this was to fit a string of ...
Guy F-W's user avatar
  • 151
5 votes
1 answer
224 views

Is it possible to make DIY foam tire inserts for gravel bikes?

I saw a video of the British cyclocross racers putting foam from a hardware store into their tires. This foam is used in construction to fill joints before caulking. All those joints on the concrete ...
user66598's user avatar
  • 1,127
0 votes
3 answers
3k views

Building a carbon gravel bicycle - Shimano 105 7020 vs GRX RX600/800

I've got into cycling around 2 years ago, mainly going to the office and cycling around the city/when traveling. Thing of 2 months ago started with long-distance and speed experimentation, and ...
leonacostaok's user avatar
2 votes
2 answers
288 views

Front fork brake posts removal

I wonder if the v brake pivot posts can be removed from the front fork, even though the posts have no flat side to undo them with a spanner? Can these be removed with a pair of pliers or a grip of ...
D D's user avatar
  • 17
7 votes
5 answers
2k views

A small bolt/nut came off my mtn bike while washing it, can someone help me identify it?

I was washing my’12 specialized stumpjumper. When shaking it/drying it off, a screw/bolt came off and I can’t find where it belongs and don’t know what it is. It has threads inside and fits a 3mm ...
Mw3841's user avatar
  • 209
2 votes
2 answers
470 views

Easily misaligned handlebars when using stem raiser

I use a Delta Stem Raiser (maybe also called a stem extender, handlebar riser, steerer tube extender) to make my handlebars "taller" (higher up than they could typically go) on my bike's ...
Will Haley's user avatar
4 votes
1 answer
269 views

DIY cargo bikes and recumbent bikes seem to use rod end bearings with an axial load. Is that ok?

I have been looking into possibly building my own cargo bike (inspired by the xyz cargo bike). That said, I am interested in possibly modifying the design - including how the steerable wheels are ...
bvz's user avatar
  • 143
6 votes
1 answer
118 views

Is it strong enough to braze stainless steel tubings with silver?

I was told that you could not braze stainless steel tubing with brass as you would with non-stainless ones. And you should use 56% silver instead? Isn't silver too weak to braze tubes together? I know ...
Zyleyus's user avatar
  • 191
3 votes
1 answer
402 views

Are there any recommended internal cable routing systems?

I'm planning to build a steel frame myself and want it to be fully internally routed (from the head tube). I'll machine a head tube to fit a system. I think the most popular one is the FSA ACR, but I ...
Zyleyus's user avatar
  • 191
2 votes
2 answers
773 views

Modify/hack rear derailleur cage size

I've listened that it is possible to modify the cage size of a rear derailleur. For instance reducing a long (SGS) to a medium (GS) or short (SS) cage size. Is it possible on all brands? Just shimano? ...
Daniel Perez's user avatar
4 votes
1 answer
257 views

What kind of load should I put on in simulation if I were to design a stem in CAD?

I am planning to build a steel bike myself and want to pair it with a custom stem. I came across someone selling 3d printed stems in my area. So I decided to design myself a stem that is compatible ...
Zyleyus's user avatar
  • 191
11 votes
4 answers
5k views

Alternatives to rim tape

After repeated punctures, I concluded that the rim tape needs replacing. I'm travelling in remote Yucatán, Amazon charges too much and takes too long to ship this basic item. What are alternatives? ...
emagar's user avatar
  • 387
4 votes
3 answers
2k views

Brake post broke off the boss. How do I replace it?

A brake post has been broken off the boss on an old BSO (bike shaped object). I'm exploring my options for reinstalling a brake. There is a hole where the post was, some 6 mm in diameter. I bought an ...
pateksan's user avatar
  • 2,364
12 votes
4 answers
4k views

Should amateurs install their own headsets?

Building a bike from scratch sounded like a fun challenge, but a frame builder firmly told me to get the headset installed professionally. Videos online make it look easy even if you don't have the ...
daddyblondlegs's user avatar
0 votes
0 answers
126 views

What are some pointers for newcomers?

Tldr: I'd like to know if there's any way for me to solve all of my problems on my own. Good day there, I'm new to this community, and I'm very excited to join! I'd like to learn at least the ...
Haadee Bin Hafees's user avatar
8 votes
8 answers
5k views

Are there limitations to how much you can upgrade a cheap bike?

I’m hoping to buy a used bike for ideally 200 Euros and make it a hobby project to keep investing in the bike piece by piece to make it a nice bike, upgrading one component at a time when I can afford ...
Julius Hamilton's user avatar
8 votes
4 answers
1k views

What type of bottom bracket does my bike have?

I found this old fixed gear conversion on CL for next to nothing. It's been really fun but I've noticed play in what I thought were the crank arms, but it turns out the spindle inside the BB has play. ...
ChumiestBucket's user avatar
8 votes
2 answers
3k views

Cup and cone bearings: better a little tight or a little loose?

A bike is commonly full of cup and cone bearings: pedals, hubs, bottom bracket, headset etc... The component change but the logic still the same the bearing is in between an axle, a pair of cones and ...
Marras93's user avatar
  • 480
8 votes
3 answers
2k views

Child seat: how to protect my child's face from rain and wind?

I edited this question more than any of my questions before, please feel free to view old versions. The overhaul of the question was approved in principle by a moderator. I did also add an answer with ...
pateksan's user avatar
  • 2,364
-2 votes
1 answer
733 views

How to attach a plastic jerrycan as a FRONT bicycle rack? (How to build a DIY basket-type attachment?)

Plastic jerricans are quite a popular way to transport stuff on the back racks. It's not easy as it seems because the question goes with some constraints: the system should not require special tools ...
JinSnow's user avatar
  • 171
2 votes
2 answers
2k views

What can I use to replace a Shimano Deore LX RD-M581?

I've got a trusty Marin East Peak XC from 2008, but the rear derailleur's adjustment screws have all sheared and I need to replace it. The derailleur is a Shimano Deore LX RD-M581, but I can't find ...
Matt Boland's user avatar
11 votes
3 answers
15k views

Does it matter what way the tires go if no directional arrow?

As the title suggests, I have just put on two new tires but now I'm not sure if I put them on in the right direction. No directional arrows so I presume anyway is fine, however me being me it made ...
Dan K's user avatar
  • 1,098
2 votes
2 answers
1k views

Burley push button wheels and axle?

I'm looking into building my own trailer and I want something similar to Burley's push button wheel system. My question is, where do I obtain similar wheels/axles? Here is the Travoy, one of their ...
Nishant P's user avatar
4 votes
4 answers
2k views

What can I get for panniers to commute with my 17" laptop?

I have looked for a pannier that can hold my 17" laptop for a couple of years. No such thing exists. I tried contacting a couple of places to make one, but they never replied. So, now I'm trying to ...
cognifloyd's user avatar
1 vote
2 answers
804 views

Home made bottom bracket plastic sleeve

I want to make a plastic sleeve from a water bottle, for a classic cup and cone bottom bracket, to protect against moisture and impurities that may run down the seat tube. How do I know the proper ...
Robert's user avatar
  • 2,069
3 votes
2 answers
6k views

How much tolerance is acceptable on the chainline of a fixed gear conversion?

When converting a geared bike to fg/ss, at some point there will be adjustments to be made regarding chainline. Without getting into details about what could be made to make it better (bb axle width, ...
Emílio Dolgener Cantú's user avatar
4 votes
2 answers
707 views

Bottom bracket conversion with rare cups

I'm asking this question as I'm interested in the community opinion in the idea of "am I taking the right path" or "is there a better way". tl;drl; - scroll to the bottom, please. Namely, almost ...
Mike's user avatar
  • 4,331
0 votes
1 answer
1k views

DIY chainsaw powered bicycle [closed]

Does anyone have any plans on how to build a chainsaw powered bicycle? I've referenced instructables and YouTube but everything is so vague it doesn't really give me any sort of ideas as what I ...
Rich Whacker's user avatar
3 votes
2 answers
1k views

Anyone tried to brush mud/snow in rear-wheel while on ride?

I ride my bike in the snow. And I think my bike can be a lot cleaner if I had a snow catcher in my rear-wheel. There is possibility because the rear wheel fork comes with extra holes in it. I think ...
KRoy's user avatar
  • 131
3 votes
1 answer
2k views

How can I tilt up a stem of my bike's handlebar which is held by two bolts?

I bought a second hand hybrid bike and would like to adjust the stem of the handlebars such that I can ride it in a more upright position. The following photo shows a side view of the stem with an ...
Saaru Lindestøkke's user avatar
2 votes
2 answers
622 views

DIY Truing, Dishing Stand Experiment

First and foremost I have no knowledge or experience in building/maintaining wheels. So I have to try it! I was reading Roger Musson book and decided to build a truing stand out of scrap I have. I'd ...
Joe444's user avatar
  • 29
3 votes
2 answers
3k views

Installing downtube shifters with no clamp

I am trying to convert my Schwinn Mountain bike into a road bike. I bought a set of Shimano SL-SY20A 3 (2) x 7 Speed Down-Tube Shifters. they have a clamp attached but my downtube is very wide and the ...
Ramon Poisson's user avatar
1 vote
2 answers
2k views

Determining the correct chain length (52/36 with 12/29 11S cassette combination)

I have a Campagnolo Record groupset on my road bike where I want to replace the chain. My combination is 52/36 crankset with 12/29 (Chorus) cassette. I got a Campagnolo Record Chain 11-speed for this ...
kubilay's user avatar
  • 153
12 votes
5 answers
16k views

How to bend handlebar to customize it?

Here in my country is kind of difficult to get certain types of handlebars, but it is easy to get flat and riser mountain type handlebars and standard types of road drop bars. So I'm investigating ...
Jahaziel's user avatar
  • 12.6k
3 votes
1 answer
202 views

Abus Folding Lock: Adding Damping to Joints

I want to add damping to the joints on an Abus Folding Lock, such that it maintains its shape if I stick it through a hole or something. I received some brief feedback that I could use rubber bands ...
kando's user avatar
  • 133
4 votes
1 answer
6k views

What can I use for interior helmet padding?

My bike helmet needs more padding on the inside. Any suggestions of what to use? I"m thinking double sided tape and some sort of neoprene or other cushiony material.
Clay Nichols's user avatar
  • 1,085
1 vote
1 answer
647 views

Servicing / replacing headset

The headset on my daily commuter is foobared. So I'll be looking to service it, possibly replace as many of the low-end components with better ones. As I've learned the hard way, it's the questions ...
Tom Auger's user avatar
  • 370
1 vote
3 answers
352 views

Bike-in-a-Kit Concept

Has anyone in the group has tried building a "Bike-in-a-Kit"- a sort of DIY bicycle, which can be entirely assembled and disassembled by the user and can be conveniently carried in a bag ? I face such ...
Ashutosh Akolkar's user avatar
0 votes
4 answers
400 views

My Bike doesn't seem to fit itself

I have a project bike. I made it myself from bits recycled. It is currently a single speed, although I'm thinking of adding gears to turn it into a bit of a commuter/excercise bike. Before I do ...
Will's user avatar
  • 201
1 vote
1 answer
351 views

Replace freewheel with freehub?

I have a Motobecane Super Mirage that I bought in 1977. I have another bike for regular use, and I've decided to completely rebuild the older one. I determined today that the freewheel teeth are worn ...
Frank-Moorman's user avatar
0 votes
2 answers
4k views

How do I determine parts for my bike and where to source them (new)?

Do bike shops have specs guides or manuals to know which (eg: integrated headset bearings) parts to use on which bikes? And where do they source said parts (other than from the bike mfr)? And most ...
Tom Auger's user avatar
  • 370
0 votes
1 answer
2k views

What bottom bracket do I need for a decathlon rockrider 5.0

The bottom bracket on my Rockrider 5.0 has a little too much play in it so I figured it best to change it before I get a failure whilst I'm commuting. Does anyone know which bottom bracket I would ...
Rich's user avatar
  • 155
0 votes
1 answer
2k views

Tyre replacement for Rockrider 300

I have a rockrider 300 which has tyre measurements as 26*2.0 and tube measurements as 26*1.75-26*2.12. According to the catalog they are semi-slick tyres. I want them to be even slicker. I have ...
user19246's user avatar
6 votes
4 answers
11k views

DIY: what material to use as DIY shim seat post?

Seat tube shim adapters are quite expensive, what kind of material do you recommend as a shim? I have seen in a thread some guys talking about home made shim: paper tape alloy drink can as a shim (...
JinSnow's user avatar
  • 171
5 votes
2 answers
2k views

What's the best way to fix carbon to titanium?

I'm building (experimenting if you wish) something out of the old bike parts and I need to fix two parts together one titanium and carbon. Basically the parts are two tubes one made of carbon of a ...
LoomyBear's user avatar
  • 531
1 vote
1 answer
414 views

How to build a Camping trailer, and riding across country with it [closed]

I'm trying to build a camping trailer for my vintage Schwin Le Tour. I want to ride my bike across country and camp in this the whole way. I was wondering if anyone has done this before, and if anyone ...
Jeremiah B.'s user avatar
2 votes
1 answer
2k views

Easy build, high weight capacity trailer for Burning Man [closed]

TL;DR I want to make a high capacity trailer from bamboo to ride around at a desert festival. Bamboo structure (probably 1.5" or 2" major strength lengths, 1" for crosses) Hitch using bamboo & ...
Drizzt321's user avatar
  • 161