Author Topic: JMC Shadow Info Needed HELP!!! Difficult resto to do !!!!! (Read 684 times)

animal · « **on:** January 09, 2008, 09:10 PM »

Looking for the height of the protruding seatpost tube through the top tube. Or top of top tube to top of seatpost tube. Am I making sense to anybody

Also I take it the bolt was a 1 inch x 5/16 UNC from the look of pics I found. Yep I'm bodging again

Your help would be much appreciated as usual.

HUTCHMAN · « **Reply #1 on:** January 10, 2008, 09:59 AM »

My shadow measures 54mm from top tube to the highest point of the seat tube(front).

Dave.

animal · « **Reply #2 on:** January 10, 2008, 05:54 PM »

Nice one.

Just need to sort the bolt and I'm away with the mixer.

animal · « **Reply #3 on:** January 14, 2008, 08:15 PM »

Think from the pics I have seen that the bolt may be larger than I thought may even be metric? Come on chaps can somebody find out what the bolt is, as have a resto on the go. Also could somebody measure the diameter of the bosses that the bolt fits into for me? I know I'm being a pain but I have no other access to the info as I've never had me hands on one in the flesh. Need also the measure checking that my kind friend has given at 53mm as the pics make it look longer than that. Also need the distance from the top of the seatpost tube to the centre of the clamp bolt.

Cheer Steve

MartyC · « **Reply #4 on:** January 14, 2008, 10:22 PM »

PM PKRadman he should be able to help out as he has enough of the things

.

What are you having to do, replace the seat tube?

animal · « **Reply #5 on:** January 14, 2008, 10:25 PM »

Yep major seatpost repairs

HUTCHMAN · « **Reply #6 on:** January 15, 2008, 09:00 AM »

Steve,double checked,tis 54mm.External dia of clamp boss 12.7mm,length of each boss 10mm,the taper starting at 5mm along its length.If i've understood you correctly,centre line of clamp bolt to top of back of seat tube 12.77mm.I'll keep at it for the bolt info.

Dave.