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-   -   whats the lightest a 748 can get then? (/showthread.php?t=27965)

nelly 08-Mar-2006 15:08

Felix, I guess Wilf is talking about "his" showroom. Moto Rapido's?

wilf 08-Mar-2006 17:38

Quote:

Originally posted by phil_h
my velocette 350 racer had the centres drilled and dished from absolutely every bolt, and every metal bracket thet had a flat section had holes drilled in it. I think we worked out that it added up to about 2kg when I compared weights on the acu scales with another racer.
Note - no ti and lots of steel bolts, so it is the 'cheap' way of getting a steel bolt that weighs about what a ti bolt does.

Thought about this, does anyone know how the strength would be effected by drilling bolts??

I've got plenty of Titanium bolts on there and most of the big ones come drillled.

I remember something about tubes being stronger than rods etc from school but thats about it.?

dont fancy drilling caliper bolts etc .:(

nelly 08-Mar-2006 18:21

If the bolt isn't structural, the there's no problem drilling them. I had a 500 Pantah, originally prep'd by Paul Klackeiwicz of DTS, and every thing that could be was drilled, cross drilled etc. even down to tapering the heads on cap head bolts.
Easiest way is to set up a collet in a lathe and drill through so to keep it dead square.

Rob B 08-Mar-2006 18:26

Wilf,

If the bolts are stressed, replace them with Ally, never mind drilling them.

Rgds, Rob

Carbon749 08-Mar-2006 21:18

Wilf ... here is the answer you are looking for. I'm sure you will be able to do similar to your 748 ;)

http://cgi.ebay.co.uk/Ducati-999-lig...cmd ZViewItem

twpd 08-Mar-2006 21:37

Are you serious???? Replace stressed bolts with aluminium? If the bike was a race bike it would be failed in scrutineering straightaway and for good reasons too. A few years ago some well-know racer died when a clip-on came adrift due to failure of aluminium bolts.

Quote:

Originally posted by Rob B
Wilf,

If the bolts are stressed, replace them with Ally, never mind drilling them.

Rgds, Rob

wilf 08-Mar-2006 21:43

that must be a typo, must mean unstressed.

or someone out there doesnt want me to finish the season:puzzled::puzzled:

Thanks nelly, looks like i'm playing with the lathe after work tomorrow!!

twpd 08-Mar-2006 21:50

I'm looking for a lathe. Must run off 240v of course.


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