in your comment about the shifter bolt loosening when you shift past
the last gear-

if you put a longer M5 mounting bolt for the shifter all the way
through the rack hole, then put a washer and locking nut, would it
help prevent the shifter from coming loose when you shift past the
last gear?

Worth a try...

Or perhaps creating a stop for the shifter, so it does not over shift,
like the small lip of a clamp on downtube shifter.


On Mar 25, 11:57 am, Philip Williamson <philip.william...@gmail.com>
wrote:
> Some pictures in the Flickr Quickbeam 
> group:http://www.flickr.com/photos/philipwilliamson/5557708893/in/pool-3870...
> and on my 
> blog:http://www.biketinker.com/2011/projects/s3x-quickbeam-on-the-road/
>
> Seatstay mounted shifter, red hub.
> 42x15 top gear, using a singlespeed cassette cog gives 47.5 - 57 - 76
> gear inches. It looks like you can use a thread-on fixed cog if you
> replace the provided lockring with a much thinner BB lockring.
>
>  Philip
>
>  Philip Williamsonwww.biketinker.com

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