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Making your own parts

Old 10-29-09, 10:25 AM
  #1  
4evrplan
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Making your own parts

Obviously the answer to this question would be different if I asked over in the framebuilders forum, but I'm curious how many regular everyday MTBers have made their own parts. At the very least, I could see people cutting drop outs from plate steel and filing them down to perfection, or derailleur hangers, or even spinning their own spacers, bearing races, etc. on a home lathe. Let us know the custom fabrication/modification you've done on your bikes however big or small.
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Old 10-29-09, 10:42 AM
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I've made disc brake adapters; a shock linkage add-on for a frame; linkage adapters for a longer-stroke shock; a shiftable chain guide; custom 'tacos' for store-bought chain guides; pedal cages (for bear-trap-type pedals); number plate holders and shock fenders from plastic; and a custom long, MX-type saddle for downhill. Oh, and I have a nifty clearance-table Lexan dinner plate that me and my Dremel are going to transform into an e.thirteen-style bash guard.

I love fabricating stuff. I am yet going to weld up my own DH frame that I designed. I would love to have a small South Bend lathe and even a Bridgeport someday.
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Old 10-29-09, 10:56 AM
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Good topic.

Wow, I can't really think of anything that I've actually fabricated for my bikes that has been significant.

I've stripped off electrical wire insulation to make cable sleeves to protect my frames from scratching, alternative to rubber 'donuts'.

I cut short pieces of aluminum to make internal handlebar reinforcements to prevent barends from crushing the bars, similar to the commercially available BERTs (bar end reinforcement thingies).

This reminds me of a very loosely organized association of framebuilders/component makers that may be defunct now, that met at Interbike and gave out the 'Golden Toidy Awards'. The name was SOPWAMTOS- Society Of People Who Actually Make Their Own S***
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Old 10-29-09, 11:03 AM
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The only thing I ever made for my bike were a few dents and scratches.
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Old 10-29-09, 11:43 AM
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I added duct tape gussets to all my frames. They're holding up fine so far.
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Old 10-29-09, 11:45 AM
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Made screwdriver holders for my elect. screwdriver out of Jamis head tubes.

Made some SS rear cog sandwich guide thingies when my chain was dropping off my hillbilly SS conversion. (I was using a cassette cog as a ss cog)
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Old 10-29-09, 11:47 AM
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Originally Posted by dminor View Post
I've made disc brake adapters
That clamp onto the fork/stays?
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Old 10-29-09, 11:47 AM
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Old 10-29-09, 11:53 AM
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Originally Posted by 4evrplan View Post
That clamp onto the fork/stays?
Dminor does ghetto, but not that ghetto.
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Old 10-29-09, 11:57 AM
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^ just googled "disk brake adapter" and it looks like adapters for mixing brake components from different brands???
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Old 10-29-09, 11:57 AM
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Yeah...he uses clip-ons.
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Old 10-29-09, 12:35 PM
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Originally Posted by chelboed View Post
Yeah...he uses clip-ons.


Adapter:



MX saddle, with hand-formed aluminum seat-pan - - photoshop mock-up:



In use:



Shiftable chain guide:



Ski-Bike parts:

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Old 10-29-09, 12:40 PM
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Nice stuff dminor. I'm glad you posted this - I was beginning to think my dumb questions had driven everyone away.
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Old 10-29-09, 03:37 PM
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Uh, explain the ski-bike thing? Converts your front wheel into a ski?
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Old 10-29-09, 03:45 PM
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Originally Posted by stevage View Post
Uh, explain the ski-bike thing? Converts your front wheel into a ski?
Googled: http://www.dirtragmag.com/web/article.php?ID=606

No place to put your feet and Flintstone brakes only.
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Old 10-29-09, 03:56 PM
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Here is a adapter I rigged up for one of my bikes.

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Old 10-29-09, 03:57 PM
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Originally Posted by sscyco View Post
Here is a adapter I rigged up for one of my bikes.

Solar tail light?

EDIT: Is the bottom part of that adapter attached to the dropout, or does all the weight/force hang off of the rim brake mount?

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Old 10-29-09, 04:06 PM
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Originally Posted by 4evrplan View Post

EDIT: Is the bottom part of that adapter attached to the dropout, or does all the weight/force hang off of the rim brake mount?
There is a trapezoid shaped hole in dropout - I filed a piece of aluminum that fit in snug, with a lip that would not pull through and bolted the bottom to that.
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Old 10-29-09, 04:13 PM
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Originally Posted by stevage View Post
Uh, explain the ski-bike thing? Converts your front wheel into a ski?
Converts front and rear:



Originally Posted by 4evrplan View Post
No place to put your feet and Flintstone brakes only.
Not entirely true. Footpaegs bolt through the bottom bracket shell. A store-bought Winter X-Bike kit:



Stopping by setting an edge just like on skis (so those who ride them well say).

A Winter X-Bike promo vid:


Originally Posted by sscyco View Post
Here is a adapter I rigged up for one of my bikes.

You fabricated that yourself? It looks suspiciously like a Specialized sharkfin.
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Old 10-29-09, 04:31 PM
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Originally Posted by dminor View Post

You fabricated that yourself? It looks suspiciously like a Specialized sharkfin.
"Here is a adapter I rigged up for one of my bikes." - I guess instead of rigged, I should have said modified. Yes, it is a Specialized adapter that has about half the material removed frome the lower end.

Was that your 2000 Big Hit - I had one of those.
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Old 10-29-09, 04:48 PM
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Originally Posted by sscyco View Post
Yes, it is a Specialized adapter that has about half the material removed frome the lower end.
Sorry, couldn't see the mods the pic. Heavily modified is 'fabricated' in my book

Originally Posted by sscyco View Post
Was that your 2000 Big Hit - I had one of those.
Yes it was - - my first "real" mountain bike. I had a lot of fun on it. That's 2003 at Beacon.
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Old 10-29-09, 08:42 PM
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Originally Posted by dminor View Post
Yes it was - - my first "real" mountain bike. I had a lot of fun on it. That's 2003 at Beacon.
That was a great bike (broke mine on beacon in 2002) - seems like I keep duplicating it - replaced with a 2003 Big hit (too much travel) then 2005 enduro pro (perfect bike), next 2008 Enduro SL pro carbon (carbon sucks for MTBs), I just ordered a 2010 enduro sl (rode one on 2 big rides) - back to the perfect bike.
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Old 10-29-09, 10:25 PM
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^^ My son has a ('07 I believe) Enduro S-Works. Those are beautiful bikes indeed.
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Old 11-01-09, 06:23 PM
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Drilled seat tube for optimal cable routing and cantilever performance:



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Old 11-14-09, 07:35 AM
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hi!
last year i had the idea to make some light bar-ends for my xc-bike. unfortunately the schmolke and ax carbon bars use to crack with other lightweight bar-ends. due to that i conceived some prototypes. some time later the bar-ends are ready to install and amusingly i found a company that will put them on the market next year and i got a patent on it.
until then, some dozen pairs (wich i still make at home) are somewhere on the trails to make "endurance tests"
someone told me 1,5Nm on a schmolke bar was enought to fix them!
http://www.bikeradar.com/gallery/art...news%2Farticle
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