Author Topic: no that I am going to go the hole hog here but.... (Read 3561 times)

junkster · « **on:** October 20, 2004, 01:23:05 am »

.......what is the general take on the following advice I stumbled upon to reduce an alluminium MTBs weight, cause it sounds a bit drastic to me [ [smiley=diaper.gif] (have only currently applied this to my seatpost which seemed to make a difference in the weight) [smiley=nod.gif]

"I am going to give you the secret of speed... and all it takes is a drill... that's right a
drill.... Take your drill and a smallish bit and start by drilling as many holes on your bike as you
can... Now don't drill all the way through... just drill into the surface about halfway... cause
drilling through would weaken the bike too much... cover the entire frame in drill holes... Then
drill your cranks.. the handlebar, stem and saddle and lastly... don't ever let anyone know I let
you in on this secret.. Drill the rims too... By the end of your drilling session you should have a
rather large pile if metal shavings... If you weigh that you will find that you will have knocked
pounds and pounds off your bike... Jimbo...trust me...(san)"

DRILLING THE RIMS!!! [smiley=worry.gif] U gotta be kiddin me!? [smiley=bomb.gif]

Can't believe this was advice for someones Enduro MTB. [smiley=disbelief.gif]

Wouldn't even think of touchin the forks or my 5000 frame, (aside from the front deraillier mount post part which I am contemplating) but still intrigued about certain other parts.

How much do you reckon you could apply this to for the 350lbs/in steel coil spring itself I wonder? (very small dimples). This is of course before the point the strength and structure is infringed upon. Mainly because the spring is heavy.

cheers,

Dan [smiley=beer.gif]

StoereVent · « **Reply #1 on:** October 20, 2004, 02:32:52 am »

Sounds like a very wise plan to me!

Simon · « **Reply #2 on:** October 20, 2004, 04:19:35 am »

There's 1 born every day

Whats the point of having a bike full of holes thats just gonna give up on U at first instance its see's a bump. [smiley=furious.gif]
Do we see anywhere manufacturer's of light weight steeds offering there ware's full of holes

Bike and component manufacturer's spend a lot on R&D to give us light weight units that are also safe and durable,if they supply a unit with holes for weight saving you can be assured its been thoroughly tested,ok sometimes they get it wrong but often the units fail due misuse or not being used for what it was intended,
just drilling holes to save weight with out any form engineering and testing is just plain stupid.
Simon

tmaybee · « **Reply #3 on:** October 20, 2004, 08:30:29 am »

Not a good idea.

You can dremel certain parts like shifter clamps, seatpost clamps and deraileur clamps, but drilling the whole bike is not a good idea.

You can drill your rims, but you will only save about 10 grams. You just drill between the spoke holes on the inside, this way it does not weaken the rim. I still wouldn't bother though.

Check out the mtbe <same some weight> board. There are several discussions on drilling rims and dremelling parts.

Cheers,
Trevor

Carbon_Angus · « **Reply #4 on:** October 20, 2004, 08:42:59 am »

Dorothy is still in Kansas, and this is not Aprill Fools.

Pounds and pounds

I don't think so.

If you are serious about saving weight where it counts...start with your tires and move in towards your hubs.

Don't be compulsive about it either, you still want to ride and have fun!

Thanks for the [smiley=laughing.gif]

[smiley=beer.gif]

junkster · « **Reply #5 on:** October 20, 2004, 10:55:01 am »

so what you are saying..........and correct me if I have misunderstood, but you all think I should go ahead an turn my bike into something that closely resembles a golf ball? cool, just what I wanted to hear. [smiley=laughing.gif] [smiley=beer.gif]

cheers people.... just going to chuck my trusty drill in the nearest river. [smiley=nod.gif]

Dan

Colin · « **Reply #6 on:** October 20, 2004, 10:48:42 pm »

Brilliant Idea!
I want to see a picture of one of these "golfball" bikes!

I wonder if this will this work on Carbons?
I wonder what I can s(h)ave of my 5500 (ex-"stoerevent")
Now where's my drill?

Ha ha ha ha ha (insane laughter..........)

Col

StoereVent · « **Reply #7 on:** October 20, 2004, 11:18:08 pm »

Colin,

you are a lucky man that this topic didn't come by before you bought my bike...

jeroen.

BTW: have you ridden it yet? Did you contact the guy that wanted to sell his Fox Float?

Carbon_Angus · « **Reply #8 on:** October 21, 2004, 04:08:23 am »

Better yet, get yourself a unicyle...or a pair of FS roller blades!! [smiley=laughing.gif]

You can carry the drill and still be lighter!!

[smiley=beer.gif]

junkster · « **Reply #9 on:** October 21, 2004, 11:30:30 pm »

Well, threw caution to the wind and did it, (what do you guys know anyway! [smiley=laughing.gif])

[smiley=beer.gif]

Can grate cheese with it too! [smiley=beer.gif]

Dan

Old Proflexer · « **Reply #10 on:** October 22, 2004, 01:23:17 am »

i see you stopped when you got to the tires - good thinking.

not much of a secret on how you are saving all the weight.

OP

do you have that front disc adapter mounted with electricians tape?

Simon · « **Reply #11 on:** October 22, 2004, 01:25:19 am »

How did u make those square holes [smiley=laughing.gif]
[smiley=beer.gif]
Simon

junkster · « **Reply #12 on:** October 22, 2004, 02:33:49 am »

OP - Check out my gallery if you want to know the secret of how to make 'the ugliest front disc brake mount in the world"!! [smiley=nod.gif]

Simon - I used a chisel - and the tyres are next. [smiley=laughing.gif]

cheers

Dan [smiley=beer.gif]

Sprucey · « **Reply #13 on:** October 22, 2004, 04:52:14 am »

I Think you are all forgetting the regional issues here.

I am sure that would work in So Cal but think of all theat heavy south of England clay filling up the holes and making the bike heavier in England.

Love the gold ball analagy - more spin = more lift. Trouble is I'm too big to go fast enough to create the initial spin.

In my experience, spin is best experienced when one lifts one's head of te piloow the morning after a good night out!

While he's at it why doesn't he take sand paper to the tubes and rub thema bit thinner - call it external butting!

Sprucey!!!

junkster · « **Reply #14 on:** October 22, 2004, 07:07:41 am »

Hi guys,
changed my mind so filled all the holes up again with led putty. [smiley=laughing.gif]

Joking aside what d'ya guys think of my rear shock booster plates, installed to give more ground/pedal clearance and generally raise the saddle height. Little ugly but will sort that out. Very strong 6mm thick alloy. (more pics in my gallery)

cheers,
Dan [smiley=beer.gif]

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Author Topic: no that I am going to go the hole hog here but.... (Read 3561 times)