XTR Crank Falling Off - HELP!!

Since 2001, over 90,000 cyclist's have joined Cycling Forums to discuss topics from general cycling to equipment, training, racing and travel or vacation destinations (especially in europe during the tour de france). We also feature an great deals in our online store, 100's of articles, classifieds and product reviews.

I just built a bike for the first time and have the new style XTR crank set.

The left crank just keeps on coming loose. I can't understand why. I tighen the 8mm allen bolt in the centre and install the left hand thread nut (which seems to contribute nothing - that I can see).

What am I doing wrong?

Please help - I'm desperate to ride this new bike!!!

Cheers

Ssushi

Do i tighten the adjusting ring against the crank or against the bottom bracket? Currently tightened against the cranbk - I think this is the problem...

Do i tighten the adjusting ring against the crank or against the bottom bracket? Currently tightened against the cranbk - I think this is the problem...
Try the following site to see where you are slipping up.
http://www.bikemagic.com/news/article/mps/uan/3914