saving a bit of weight from wheels?

[taffy]

Drilling rims was in an MBUK grime time article 16 years ago.
60 8 mm holes were drilled inside an M231.
Weight list was something like 40 g
Strength of the rim was reduced drastically.

 

[MADJEZ]

Pro Class wheels, yum !

http://bmxmuseum.com/forums/viewtopic.php?id=15006

 

[WD Pro]

Pro Class wheels, yum !

http://bmxmuseum.com/forums/viewtopic.php?id=15006

Yes, that's what I had with the black foil strips till the bike got nicked :-(

I bought the wheels on a bike off my friend - never seen anything like them before hand, and not since until this thread

WD

 

[perry]

I've been drilling rims for about 8 years now after thinking one day " well its full of holes already , some more couldn't hurt " . Never had a problem with 2 extra 10mm holes between the spoke holes in a 36 hole rim . Seems to save between 5 and 10 grams a rim on average so not a great saving but if you have a drill and a few bits already it's only costing you time . I haven't done it for a while now as I can't be bothered , it can take a while popping that many holes into 2 rims going from a 2mm bit to a 10mm one .

Modern trials rims are like that so more material can be put into the parts of a rim that need the extra thickness but still keeping the rim in a reasonable weight . So more of an offset than a saving .

 

[jonboy]

I wouldn't waste my time drilling holes in rims. They'll look horrible and it'll save you such a tiny amount of weight it's not worth it.

It's all about the tires and tubes for rolling resistance. I swore by 1.7 Ritchey Z-Max's in the red with 26 x 1" Specialised inner tubes that were designed for the 1" fatboy tires. They stretch up to 1.7 fine, and save you about 100g compared to a 1.95 tube.

 

[sancho]

DT revolution spokes and alloy nipples everywhere but the drive side of the rear wheel is my preferred method of reducing wheel weight.

 

[xizang]

Pro Class wheels, yum !

http://bmxmuseum.com/forums/viewtopic.php?id=15006

I had those too

 

[BenR]

Great idea. So what happens when you ride through a puddle and suddenly you've got 100 gms of muddy water sloshing around inside the rim?

You'd lose more weight by having a good dump before the ride. A couple of pints of Old Peculier the night before will take are of that.

 

[02gf74]

Great idea. So what happens when you ride through a puddle and suddenly you've got 100 gms of muddy water sloshing around inside the rim?

no - see the origninal post, maybe I did not explain it well enough. the rim if cut sideways, is like a box. The lower side has the spoke eyelet, the top side of the box is where hole to access the nipple is drilled and upon which the tim tape lies. Iwas suggesting drilling the upper side, not the lower as indeed, the rim will fill up with water and mud that wold be very hard to clean out so would increase the weight.

I am nfamiliar with the MBR (?) article so was the rim a single wall - like that BMX rim or a box section construction?