Retrobike Forum Index

It is currently Sat Dec 10, 2016 6:02 pm

* Login   * Register * Search  * FAQ



Post new topic Reply to topic  [ 299 posts ]  Go to page Previous  1, 2, 3, 4, 5, 6, 7 ... 30  Next
Author Message
PostPosted: Sun Jun 09, 2013 10:37 pm 
Old School Grand Master
User avatar

Joined: Sat Oct 06, 2012 5:17 pm
Posts: 3775
Location: Norn Iron
Great stuff - sounds like the rims for my Rossin then!! It will be a DA 7400 build and i was wondering about rims - Nemesis or GP2's, i have Oros too but they are too blingy for me!!

Thanks for that,

Richard


Top
 Profile  
 
PostPosted: Mon Jun 10, 2013 6:33 am 
Retro Guru

Joined: Mon Feb 11, 2008 9:42 am
Posts: 2386
Not surprised the nemesis builds up so well...... it gives away about 70 grams to the reflex! (430 vs 360 claimed weights!) that's going on towards open pro weights.


Top
 Profile  
 
PostPosted: Mon Jun 10, 2013 8:04 am 
Retrobike Sponsor
Retrobike Sponsor
User avatar

Joined: Sat May 22, 2010 10:33 pm
Posts: 2192
Location: Suffolk
The nemsis is 470g actally. Rim weight is no guide to how well a wheel builds up. I build some very light clinchers like the Kinlin XR-200 (380g) and DT Swiss RR415 (415g) that build up just a well. It is all in the consitancy of the extrusion. The problem with the Reflex is the thickness of the spoke nipple bed, it's too thin leading to problems.


Top
 Profile  
 
PostPosted: Mon Jun 10, 2013 9:10 am 
Old School Grand Master
User avatar

Joined: Thu Jul 19, 2007 7:18 pm
Posts: 3798
Location: Staffordshire
All useful stuff! Do any of you have experience of Olympic Montreal rims? I have a reasonable set in 36 flavour and was wondering if they would make ideal candidates for my first go at wheel building.

First ride on the Bontrager rear tub at the weekend. Initial report is that it feels every bit as good as the Continental it replaced.

The high spot I was worried about doesn't feel out on the road even on the one bit of new surface there is in the area.


Top
 Profile  
 
PostPosted: Mon Jun 10, 2013 1:35 pm 
Retrobike Sponsor
Retrobike Sponsor
User avatar

Joined: Sat May 22, 2010 10:33 pm
Posts: 2192
Location: Suffolk
Never used those. A bit before my time really. They probably will be fine so long as they are round. check the ERD in several spots out of roundness will show up that way. If you have a flat surgace you will see if the rim im flat. If it checks out then they will build well.


Top
 Profile  
 
PostPosted: Tue Jun 11, 2013 5:59 pm 
Retro Guru
User avatar

Joined: Tue Jul 20, 2010 8:22 am
Posts: 2075
Location: Warks
:lol: :lol: :lol:
Tel wrote:
Excellent post. I shall make this a sticky.


Top
 Profile  
 
PostPosted: Wed Jun 19, 2013 2:40 pm 
MacRetro rider
MacRetro rider

Joined: Tue Mar 29, 2011 6:06 pm
Posts: 1852
Location: Roamin' in the gloamin'
Well that was sticky!
Tubs had been stretching for a few weeks and I finally bit the bullet and glued them. I'd thought about using tape but read conflicting opinions ( on the Internet, really?) and plumped for glue. Stretching had done its job and with the help of fresh glue on the tape, the tub went on a lot easier than the dry run. Got it centred and pumped it up hard. It was then I noticed the valve was slightly squint. Let the tyre down and tried to slide it round but the glue had taken hold. I suppose I could have taken it off completely and started again but both the tyres and my hands were sticky enough as it was so I left it. I'll probably regret it at some point but if I like them I'll be getting better tubs at some point anyway. Learned from my mistake and got the rear one right. Cleaned up the brake surface and tyre wall with some alcohol and all's looking good. I'll let them sit over the weekend then try them out. Biggest problem I see is the close ratio cassette the previous owner fitted, don't know I have the legs for it!


Top
 Profile  
 
PostPosted: Wed Jun 19, 2013 5:45 pm 
Retrobike Sponsor
Retrobike Sponsor
User avatar

Joined: Sat May 22, 2010 10:33 pm
Posts: 2192
Location: Suffolk
close ratio rock's. My Alan has 52/44T chain ring a 13-18T freewheel. !0% gradients are just about possible but not for long.

I tend to use 12-21T cassette mostly with 53/39t ring and all the hills in suffolk ca be done with pace. Lake district hill are another matter though. Give close ratio ago you might be suprised.


Top
 Profile  
 
PostPosted: Wed Jun 19, 2013 9:03 pm 
Old School Grand Master
User avatar

Joined: Thu Jul 19, 2007 7:18 pm
Posts: 3798
Location: Staffordshire
Hi all. Are there any differences gluing a tyre to a carbon rim? I want to get the Gazelle TT bike back on the road.

Do I need a different glue or technique?


Top
 Profile  
 
PostPosted: Wed Jun 19, 2013 10:58 pm 
Retrobike Sponsor
Retrobike Sponsor
User avatar

Joined: Sat May 22, 2010 10:33 pm
Posts: 2192
Location: Suffolk
You know I am not positive but I think the same proceedure applies. I think the same glue can be used but I do not know for certain. There are carbon specific tub glues but I think the difference is the this glue does not soften as much as it heats up. Carbon rims can ad do suffere from heat build up when braking so normal tub glue might soften to much but this will only happen if you brake alot and then I do not know if it presents a big problem.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 299 posts ]  Go to page Previous  1, 2, 3, 4, 5, 6, 7 ... 30  Next

All times are UTC [ DST ]


Who is online

Users browsing this forum: CarbonFibre and 25 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:  

About Us

Follow Retrobike

Other cool stuff

All content © 2005-2015 Retrobike unless otherwise stated.
Cookies Policy.
bikedeals - the best bike deals in one place
FatCOGS - Fat Chance Owner's Group

Powered by phpBB® Forum Software © phpBB Group