Folding Bikes - SRAM Powerlink for Brompton chain (photos)

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danoulz
09-09-10, 04:41 AM
Hi !
I recently serviced my 2006 Brompton M6R+, and in the process I managed to damage (slightly, but worryingly nonetheless) a chain link by forcing too much with the chain extractor. :(

Anyway, this gave me an excuse to upgrade the offending chain link with a SRAM Powerlink. :D

I have a standard 2006 6-speed Brompton (pre-BWR / Brompton Wide Range), so that's 3-speed SRAM gear hub, 2-speed derailleur (13T and 15T sprokets), with a 50T chainring. The required chain is therefore 1/2" x 3/32" (not 1/2" x 1/8"), usually sold with 102 chain links (just remove 2 to get the correct number).

The correct version of SRAM/Sachs Powerlink is silver/grey PC10.
As Brompton says "We recommend SRAM PC1 (1/8") and PC10 (3/32") chains": http://www.brompton.co.uk/page.asp?p=3070
They are normally sold as "7-Speed" models as well.

That's how it looks like:

http://daniel.weck.free.fr/SRAM_Powerlink/IMG_0274.jpg

Chain breakage to remove the damaged link (note: the link is not totally removed on this photo, the other pin need to be extracted to complete the breakage and fit the Powerlink):

http://daniel.weck.free.fr/SRAM_Powerlink/IMG_0276.jpg

Powerlink now in place (very easy to put on):

http://daniel.weck.free.fr/SRAM_Powerlink/IMG_0279.jpg

An finally, the essential cleaning wipes to wipe the mess off ! :lol:

http://daniel.weck.free.fr/SRAM_Powerlink/IMG_0280.jpg


puppypilgrim
09-09-10, 11:08 AM
Yeah had to do that with my Dahon after re-installing gears back on. Used something called "Missing Link" instead of the one you used.

fietsbob
09-09-10, 11:40 AM
I just press the rivet back in, I got a half link , use it with the 3/32 Full bushing chain I got ,

(whipperman) .. one on my Brompton . one on the Rohloff bike.

Ive just pressed the rivet back in My derailleur bike chains for a long time, Sedis Sport, same chain,
just pre SRAM's buy out of Sachs Group.