Spoke Hub Rear
- Thread starter motoddrob
- Start date
steph
Hero member
- Location
- Torgny, Belgium
Hi Rob
By replacing your rear hub with an aluminum one you will weigh down your rear wheel by a kilo
I was a little worried last year when I reassembled a Mg front hub just before climbing up on the Spa-Francorchamp track.
I do confirm Jim's words by the practice
By replacing your rear hub with an aluminum one you will weigh down your rear wheel by a kilo
I was a little worried last year when I reassembled a Mg front hub just before climbing up on the Spa-Francorchamp track.
I do confirm Jim's words by the practice
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Rob
Hero member
- Location
- Midlands, UK
Time to get serious about my diet then!
steph
Hero member
- Location
- Torgny, Belgium
Rob
Hero member
- Location
- Midlands, UK
motoddrob
Hero member
- Location
- S/W Australia
Well an extra kilo for piece of mind is probably worth the extra weight. Heading to perth this w/e so will have a good look at that GS1000 hub.
Also need to look at loosing a couple of kilos arounbd the gut. Feeling abit over weight at 82kgs when I'm usually below 80. Must be an age thing.
Also need to look at loosing a couple of kilos arounbd the gut. Feeling abit over weight at 82kgs when I'm usually below 80. Must be an age thing.
piranha-bro2
Hero member
- Location
- Melbourne
You can lose weight from the Suzi hub by using alloy sprockets, a lighter disc, careful use of alloy spacers (but not the bearing centre spacer), removing unnecessary fat from the cush drive ...
The SFC mag rear hub is great, but the solid cast disc bolted to it was unreal!! Compare with a modern rear rotor, more akin to a bicycle disc!
The SFC mag rear hub is great, but the solid cast disc bolted to it was unreal!! Compare with a modern rear rotor, more akin to a bicycle disc!
motoddrob
Hero member
- Location
- S/W Australia
Yep go to trouble to save some weight using Mg hub then fot a heavy disc to it!! Same as the SFC oil filler, light weight Mg cover then use a heavy steel filler cap!!
piranha-bro2
Hero member
- Location
- Melbourne
Don't get it. Why??
motoddrob
Hero member
- Location
- S/W Australia
Why indeed!!
Tippie
Hero member
- Location
- Dr?bak, Norway
Unsprung weight is the enemy of handling.
GregT
Hero member
- Location
- Christchurch NZ
Funnily enough, one of the first things I advise potential GS1000 racers is to avoid the spoked wheels. They seem to want the look...
They spend big dollars on a 5 inch alloy rim and a heavy duty spoke job - then wonder why their bike doesn't handle as well as one on mags...
Wheel stiffness is a wonderful aid to handling.
I am starting to see why the early GS750 spoke hubs are becoming scarce in Australasia though. You SFC owners are buying them up.
MarnixSFC
Hero member
I thought that Larry was the only one I knew who wrecked a mag rear hub. Now hearing that he sold it because he didn’t trust it anymore brings the number back to zero.
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steph
Hero member
- Location
- Torgny, Belgium
Believe it or not but the SFC "heavy" rear disk is actually lighter than the later front one
If my memory serves me well a drilled rear solid disk weights around 1.9Kg as a front one 2.2Kg.
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motoddrob
Hero member
- Location
- S/W Australia
Maybe I should be listening to Marnix and save myself time and money and just use the original hub. Was under the impression that there was a risk of them cracking due to age and long term use. It's going to have an easier time on the track than on the goat tracks I have around my area.
v2ventiler
Senior member
motoddrob said:Believe it or not but the SFC "heavy" rear disk is actually lighter than the later front one
If my memory serves me well a drilled rear solid disk weights around 1.9Kg and a front one 2.2Kg.
Yep go to trouble to save some weight using Mg hub then fot a heavy disc to it!! Same as the SFC oil filler, light weight Mg cover then use a heavy steel filler cap!!
speaking about weight: if you mount the early magnesium oil filler cover without paint you can save another 7 gr. Just a thought, if you want to mount the heavy Suzuki hub. The later lighter SFC with the alloy wheels could easily live with the heavy painted cover.
cheers
Michael
IMG_1081 by Michael Kurtz, auf Flickr
68A00EC1-088D-4C5E-8EEE-5F2684A347CB by Michael Kurtz, auf FlickrPS: i do not smoke
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motoddrob
Hero member
- Location
- S/W Australia
Hi Michael
My SFC is a 74 so unpainted cover. Have the painted version on the Motodd. Handy to know I can save 7 grams on the 1200 if I strip the paint!.
Is there much weight difference between the ally wheel and spoke with crush drive and disc fitted? You'll need bigger scales
My SFC is a 74 so unpainted cover. Have the painted version on the Motodd. Handy to know I can save 7 grams on the 1200 if I strip the paint!.
Is there much weight difference between the ally wheel and spoke with crush drive and disc fitted? You'll need bigger scales
motoddrob
Hero member
- Location
- S/W Australia
Still can't understand why they fitted the really heavy steel filler cap
v2ventiler
Senior member
it is because you then will still have some resources to reduce weight
piranha-bro2
Hero member
- Location
- Melbourne
Good point, Greg. I'd be interested to see the difference between various spoked wheel strengths; there must quite a bit of variation - hub strength, spoke triangulation flange-to-flange, spoke length and all the other parameters that make a good or bad wheel.