Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Blog NEW Galleries NEW FAQ Contact About
It is currently Mon Aug 29, 2016 7:12 pm
Recently the board software has been updated and there are some known bugs/failures:
- Avatars are currently not being displayed ✔ FIXED
- Tapatalk connection is currently broken ✔ FIXED
- Avatars cannot be uploaded ✔ FIXED

Please note that we will soon do some changes in WW board template design in case to get a fully mobile/desktop responsiveness board!
If you find more errors please post it here: http://weightweenies.starbike.com/forum/viewtopic.php?f=7&t=139062

All times are UTC+01:00

Post new topic  Reply to topic  [ 24 posts ]  Go to page Previous 1 2
Author Message
PostPosted: Sun Sep 29, 2013 7:24 pm 
User avatar

Joined: Mon Feb 19, 2007 3:44 am
Posts: 2060
Location: Canada
It's just that is doesn't make sense in the first place for the members.

What I'm reading here is:

"OOps, I bought something that's wayy heavier than what I was thinking.
I seem biased in favor of Praxis, and apparently I tried every other options that's been offered because I reject these options (inferior quality, low durability, too costly, etc.).

Add to this that DJ confesses he won't do the job himself because of poor skills... :noidea:

Sorry, but we're lost here...

This post maybe should just have started like this:

"Hey, I want to experiment something: Drilling a heavy cyclocross 46T Praxis Chainring and see how much weight I can shave off the part and if it still shifts well...:)"

You would have already a dozen :beerchug: like that :) !!!

Just my opinion,

GO DJ !!!

Louis :)

Last edited by LouisN on Sun Sep 29, 2013 7:26 pm, edited 1 time in total.

PostPosted: Sun Sep 29, 2013 9:46 pm 

Joined: Mon Dec 28, 2009 8:30 pm
Posts: 5283
Location: Bay Area
djconnel wrote:
Anyway, I've been using Stronglight, and the shifting has been unimpressive. I bought it because all of the other sizes of Praxis are lighter and there were no available weights for the 46, certainly not from Praxis: they obviously decided to add substantial beef for the 46. Obviously the other rings shift quite well, so the beef isn't needed. Perhaps it's to avoid mud.

Surprised at the lack of support here, where people pay $1k+ to save 75 grams off frame weight.

This is because the proposed course of action is stupid. Want a lighter ring then buy one and use it only for hillclimbs. Want a better shifting ring then buy one and use it for whatever. You should understand you make sacrifices in both the weight and performance realms depending on which end of the spectrum you skew to. Most accept it and move on with their lives and I'm sure there is much more you could gain from your training than the difference in weight.

Don't take me too seriously. The only person that doesn't hate Froome.

PostPosted: Sun Sep 29, 2013 10:28 pm 

Joined: Mon Apr 03, 2006 8:53 am
Posts: 639
djconnel original question "Has anyone done this sort of thing?"

Sorry djconnel I have not.

Everyone else, have you ever read any posts from djconnel? I am sure he knows what he is doing, might not be the right ideal for you but no need to "go off the rails" and off the topic......


PostPosted: Sun Sep 29, 2013 11:47 pm 
User avatar

Joined: Wed Jul 13, 2005 10:51 am
Posts: 1077
Location: Sydney, Australia
Wtf is going on here? Is this "dontmakeyourstufflighter weenies"? There used to be heaps of cool tuning going on. I remember tuning my chorus rear derailleur to below record weight in 2006-2007 and I'm still riding it today.

The OP has been around a while and isn't an idiot, I would totally do what he is considering. He has also said that cycling is a hobby - clearly he enjoys his bikes as much as riding and for me, modifying and creating something that is unique is pretty cool.

The hard part, as already mentioned will be to get it looking good and symmetrical without messing up the shift ramps and pins.
I'd probably DIY, first with a drill press and then tidy up with a rotary tool. Alternatively, a machine shop 'should' do a neater job. Just spend some time carefully marking out the chainring for them.

DO IT! I'm keen to see how it goes.

You can't be a real country unless you have a beer and an airline. It helps if you have some kind of a football team, or some nuclear weapons, but at the very least you need a beer.
-- Frank Zappa

PostPosted: Mon Sep 30, 2013 2:56 am 

Joined: Tue Nov 11, 2003 9:47 pm
Posts: 2196
Location: Santa Cruz, California, USA
I'd look into removing metal between the raised areas, i.e. where the Praxis Works text is. The thicker 'arms' on either side are probably more important. It'd be cheaper to buy an inexpensive dremel tool and do it yourself than to take it to a machine shop. You don't need a lot of accuracy as long as you avoid creating stress risers.

If you do it and it breaks its not my fault!

PostPosted: Mon Sep 30, 2013 3:19 am 

Joined: Tue Sep 14, 2010 3:28 pm
Posts: 1405
WHOA! Wait. you better consult the manufacturer. That may void the warranty :lol:

Well said Kman.

PostPosted: Mon Sep 30, 2013 7:44 am 

Joined: Mon Jan 16, 2012 7:03 am
Posts: 202
Location: Queensland Australia
bricky21 wrote:
WHOA! Wait. you better consult the manufacturer. That may void the warranty :lol:

Well said Kman.

And Prend. :p

WW It..... :thumbup:

2013 Giant TCR Advanced SL 0, 6.92kg
2013 Giant Defy Composite 2 M, 8.5kg - Wife's
Azzurro Torino 8.55g
Fuji 650 10.8kg
Miele Lupa Triple Tandem 38,89kg

PostPosted: Mon Sep 30, 2013 1:04 pm 

Joined: Wed Mar 28, 2007 12:49 pm
Posts: 1590
Location: Near Horgen, Switzerland
Go for it. Personally I really like the unusual look of this chainring, but it would be good to see what it looks like with holes.

Worst case you would fold the chainring, and I doubt that's going to happen if you leave "chainringlike" amounts of metal as you're not exactly Chris Hoy.

The project sounds like a good excuse to join a metalwork / machine tools evening class, or find someone who does this stuff as their hobby who can help.

PostPosted: Mon Sep 30, 2013 1:21 pm 

Joined: Wed Jan 10, 2007 10:56 pm
Posts: 1178
Location: Canada
I'm still trying to figure out how Dan's spell check changed Praxis to Prait'xis.


Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 24 posts ]  Go to page Previous 1 2

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Round big chainring + oval small chainring = muscle adaptation issues?

in Road




Thu Aug 18, 2016 3:09 pm

Marin View the latest post

This topic is locked, you cannot edit posts or make further replies. Scott Addict Di2 drilling

in Road




Sat Sep 05, 2015 9:33 pm

Powerful Pete View the latest post

There are no new unread posts for this topic. Drilling Holes in handlebars

[ Go to page: 1 2 3 ]

in Road




Fri Sep 25, 2015 4:43 am

kman View the latest post

There are no new unread posts for this topic. Drilling Colnago frame for di2

[ Go to page: 1 2 ]

in Road




Sat Apr 30, 2016 5:09 pm

Junior7 View the latest post

There are no new unread posts for this topic. using (110 BCD) inner chainring as outer

in Road




Mon Aug 22, 2016 6:04 am

RussellS View the latest post

All times are UTC+01:00

Who is online

Users browsing this forum: AJS914, Bing [Bot], campbellrae, Hawkwood, jeffy, jpanspac, KarlC, kode54, lovemyway, MSNbot Media, nherment, OutOfBreath, PhilippCX, Stefano, TomColnago, whyamihere and 23 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited