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PostPosted: Tue Jun 02, 2015 7:06 pm 
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Now I reduced the S2E model to 8kg.

If you use the carbon weight it is as easy as possible.

But I hate the pattern of carbon.

So only use titanium to reduce weight.

So I wonder.

Is there a Titanium crank?


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PostPosted: Wed Jun 03, 2015 4:35 am 
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Its a brompton for gods sake


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Posted: Wed Jun 03, 2015 4:35 am 


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PostPosted: Wed Jun 03, 2015 4:38 am 
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Come on, it's outlandish stuff like this that made WW unpredictable and great. Sure it's a Brompton, but he's got the right spirit!

And I'd rather follow this than another 'aero bikes are BS' or 'what wheels do I need' thread.

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PostPosted: Wed Jun 03, 2015 6:37 am 
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Moved to the road forum. Titanium cranks were made, a long time ago. you might get your hands on a Morati set or maybe even a set of sweetwings. Also, I believe I have read somewhere that there is a titanium bolt kit for Brompton.

Yes, there is: http://www.brompfication.com/35-titanium-bolt-set.html

have a look at their shop as well: http://www.brompfication.com/20-all-products

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PostPosted: Wed Jun 03, 2015 8:07 am 
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Post your bike in the meantime!


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PostPosted: Wed Jun 03, 2015 4:44 pm 
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DeMonchaux Eclair cranks? Looks like they're still being made. No idea what the cost is. I think they use a square taper BB.

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PostPosted: Sun Jul 05, 2015 12:19 pm 
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Hi. Pls post bike OP. I have a brompton as does my daughter and this could be a great project for me. At ~ 12 kgs a piece ti bolts are not going to do it.


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PostPosted: Sun Jul 05, 2015 5:07 pm 
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Presumably you have changed the rear triangle and fork to Ti already ?

There's also Ti seatpost, Ti bolts, Ti spokes to consider if you haven't done those ?


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PostPosted: Sun Jul 05, 2015 5:21 pm 
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Tinea Pedis wrote:
Come on, it's outlandish stuff like this that made WW unpredictable and great. Sure it's a Brompton, but he's got the right spirit!

And I'd rather follow this than another 'aero bikes are BS' or 'what wheels do I need' thread.


I completely agree. It had never occured to me that I might need a brompton in the stable, but I am now intrigued. Please post some pictures.


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PostPosted: Mon Dec 07, 2015 9:19 am 
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If you want Lightweight cranks that aren't carbon could you consider a set of SISL? No titanium admittedly but close enough?


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PostPosted: Mon Dec 07, 2015 7:19 pm 
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While we wait for the OP, I'll post a pic of mine.

Brompificaiton makes a few nice Ti parts (as others have mentioned). There is a good collection of Brompton mods on the nycewheels website (NYC Brompton dealer).


FWIW, this bike is a ton of fun. With standard gearing (I have the 6 speed version) you dont spin out until about 30mph and I have no problem climbing hills unless they are crazy steep.


Image

Image


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PostPosted: Mon Dec 07, 2015 9:20 pm 
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SJS Cycles have a load of titanium parts for Bromptons..... I had no idea! http://www.sjscycles.co.uk/ti-parts-wor ... kshop_pg1/
No sign of a crankset though.


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Posted: Mon Dec 07, 2015 9:20 pm 


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PostPosted: Sun Dec 27, 2015 3:24 pm 
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Oh my eyes! Is there any way to unsee that thing?

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