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 Post subject: Re: BH Ultralight
PostPosted: Thu Jan 30, 2014 3:13 pm 
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Joined: Wed Aug 10, 2011 4:03 pm
Posts: 315
Location: Porto, Portugal
What is your opinion about KCNC chainrings?

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 Post subject: Re: BH Ultralight
PostPosted: Thu Jan 30, 2014 3:36 pm 
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Joined: Fri Dec 07, 2012 8:34 pm
Posts: 186
Location: South Florida
they dont shift the greatest, especially under load, arent the stiffest, but they look great and weigh nothing.
So depending on how often you shift between chainrings (i hardly ever do) would be a determining factor for me recommending them or not.

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 Post subject: Re: BH Ultralight
Posted: Thu Jan 30, 2014 3:36 pm 


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 Post subject: Re: BH Ultralight
PostPosted: Thu Jan 30, 2014 6:44 pm 
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Joined: Wed Aug 10, 2011 4:03 pm
Posts: 315
Location: Porto, Portugal
Thanks a lot for your opinion.

Why don't you make some "doors" to chain on the back? I do it in my Doval chainrings and it works.

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 Post subject: Re: BH Ultralight
PostPosted: Thu Jan 30, 2014 10:24 pm 
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Joined: Fri Dec 07, 2012 8:34 pm
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Location: South Florida
what do you mean by doors?

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The New: BH http://weightweenies.starbike.com/forum/viewtopic.php?f=10&t=117760
The Old: Trek http://weightweenies.starbike.com/forum/viewtopic.php?f=10&t=110051


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 Post subject: Re: BH Ultralight
PostPosted: Fri Jan 31, 2014 6:21 pm 
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Joined: Wed Aug 10, 2011 4:03 pm
Posts: 315
Location: Porto, Portugal
Something like this...


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 Post subject: Re: BH Ultralight
PostPosted: Sat Feb 01, 2014 10:02 am 
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Joined: Fri Dec 12, 2008 5:19 am
Posts: 659
Location: Brisbane, Oz
Ramps


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 Post subject: Re: BH Ultralight
PostPosted: Sat Feb 01, 2014 5:15 pm 
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Joined: Fri Dec 07, 2012 8:34 pm
Posts: 186
Location: South Florida
ramps, i got it now. There are some ramps already machined into the rings but they are not very significant. With how thin the rings are already and lacking proper machining tools I'm not one to bust out a dremel and stat hacking away at my parts. The shift quality is good enough for me since i only jump between rings 1 or 2 times every ride. Just can't shift up under heavy load.

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The New: BH http://weightweenies.starbike.com/forum/viewtopic.php?f=10&t=117760
The Old: Trek http://weightweenies.starbike.com/forum/viewtopic.php?f=10&t=110051


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 Post subject: Re: BH Ultralight
PostPosted: Sun Feb 02, 2014 9:02 pm 
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Joined: Sat Feb 01, 2014 12:35 pm
Posts: 3
Hi,

been looking at the BH G6 and Ultralight for a while now, how do you fit the Record cranks to them?

Is it just a case of pressing the FSA shim http://www.bike24.com/p250245.html into the hollow of the frame, and then putting the record cranks with bearing into that? (Or do you need a PF30 BB in there as it indicates?)

Alternatively, have seen a Wilier 386 kit, a C-Bear BB and a mr_Ride BB, wheels-MFG kit - but guessing these carry 2 sets of bearings when used with the pre-installed Record ones?

Many thanks!


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 Post subject: Re: BH Ultralight
PostPosted: Sun Feb 02, 2014 11:39 pm 
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Joined: Tue Aug 24, 2010 11:20 pm
Posts: 66
BazzaS wrote:
Hi,

been looking at the BH G6 and Ultralight for a while now, how do you fit the Record cranks to them?

Is it just a case of pressing the FSA shim http://www.bike24.com/p250245.html into the hollow of the frame, and then putting the record cranks with bearing into that? (Or do you need a PF30 BB in there as it indicates?)

Alternatively, have seen a Wilier 386 kit, a C-Bear BB and a mr_Ride BB, wheels-MFG kit - but guessing these carry 2 sets of bearings when used with the pre-installed Record ones?

Many thanks!


I used the Wilier 386 Kit on my ultralight


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 Post subject: Re: BH Ultralight
PostPosted: Mon Feb 03, 2014 12:07 am 
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Joined: Sat Feb 01, 2014 12:35 pm
Posts: 3
Thanks. So with that kit, which bearings do you end up running (or both sets!?)


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 Post subject: Re: BH Ultralight
PostPosted: Mon Feb 03, 2014 5:39 am 
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Joined: Fri Dec 07, 2012 8:34 pm
Posts: 186
Location: South Florida
hi, another option would be to use the press fit 30 bottom bracket, then use an adapter such as the FSA one linked below. There are certainly other companies that make adapters as well, such as wheels manufacturing as previously stated. You just press the PF30 BB minto the shell then press the adapters into the PF30 bearings and then insert the crank, very simple installation

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The New: BH http://weightweenies.starbike.com/forum/viewtopic.php?f=10&t=117760
The Old: Trek http://weightweenies.starbike.com/forum/viewtopic.php?f=10&t=110051


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 Post subject: Re: BH Ultralight
PostPosted: Wed Mar 05, 2014 11:01 pm 
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Joined: Sat Feb 01, 2014 12:35 pm
Posts: 3
Got my BH G6, installed FSA blue 386evo/campag adapter (aluminium shims), and as confirmed by FSA and contrary to the info on even theFSAwebsite a PF30 BBis not used. Suspect it would be with the FSA SRAM etc adapter, but not the campag one. It uses the campag bearing within the pressed-in adapter.
The campag chain set (ultra torque record in my case) simply pushes into the pressed-in adapter with the fsa-supplied wavy washer.
Time will tell if my particular combination of part tolerances requires loctite (e.g primer and low strength didsassembly-permitting 641), but for now I'm starting out with a lightly greased installation.

Hope this is of use to someone in future, beautiful frame as is the ultralight.


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 Post subject: Re: BH Ultralight
PostPosted: Sat Apr 12, 2014 2:59 am 
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Joined: Thu Jan 16, 2014 5:55 am
Posts: 11
For you Ultralight riders, what size bike are you riding? I know that the sizes can vary in how they fit, but I'm curious to know if you think these frames fit any differently than other brands?

How tall are you? More torso? More leg?

I'm 5'11 (180.5 cm) with a 32.5" inseam (82.55 cm) and a longer torso.

I have a BH G6 in medium (557 tt), and so far, so good, but usually ride a 56 cm in all other frames, and stack and reach are a bit smaller than other companies. I'm currently set up on a 120 mm stem, but am thinking of moving into a 130, as I think I want to be laid out a bit more.

Anyway, any advice or tidbits of info would be great.

Thanks.


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 Post subject: Re: BH Ultralight
PostPosted: Sat Apr 12, 2014 7:24 pm 
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Joined: Thu Jan 16, 2014 2:58 am
Posts: 29
I'm on a medium Ultralight. I'm 5'9" with a 29.5 inseam. 100mm stem.


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 Post subject: Re: BH Ultralight
PostPosted: Sun Apr 13, 2014 7:16 pm 
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in the industry

Joined: Fri Dec 07, 2012 8:34 pm
Posts: 186
Location: South Florida
im 6'1'' with a 32.5" or 33" inseam. I ride a large, seat height 797mm, 0mm offset seat post, 120 stem, 83mm bar reach 12cm saddle to bar drop. I feel like I could possibly go to a 130 stem, maybe drop the bars a bit more, and still feel good, but I've been riding it this way for 6 months and just feel so good.

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The New: BH http://weightweenies.starbike.com/forum/viewtopic.php?f=10&t=117760
The Old: Trek http://weightweenies.starbike.com/forum/viewtopic.php?f=10&t=110051


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 Post subject: Re: BH Ultralight
Posted: Sun Apr 13, 2014 7:16 pm 


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