[John Harris]

Don't know if anyone is interested but I just received my Front caliper Titanium bolts and weighed them vs stock steel for a 17 SP. Titanium is 24 grams vs stock steel 33 grams. So a reduction of 44 grams or 1.5 oz. Not much but then I am going for corrosion resistance and shine (bling).
I will be receiving front and rear rotor bolts and sprocket nuts in Titanium and will post their weights.

Now if I can just get accurate weight of the stock SP rims with bearing only then I can decide if I want the Marchesini Magnesium wheels.

 

[arthurY]

Yes, AMZN has been selling titanium bolts of different shapes and sizes and they do cost an arm and a leg.
Interesting concept, though.

 

[Old&Tired]

…... Front caliper Titanium bolts and weighed them vs stock steel for a 17 SP. Titanium is 24 grams vs stock steel 33 grams...…..

Hmmm? Indeed my 2015 SP OEM bolts are 33 grams, but my Pro-Bolt Titanium bolts are only 22 grams. Only 2 grams lighter, but in percentages that's ~8.3% lighter. Where did you get yours? Not a big deal, but since you posted, I checked mine. LOL I have extra Titanium bolts for spares. I prefer BST Carbon wheels to magnesium though.

 

[John Harris]

I got the caliper bolts off Ebay from a Chinese vendor, not bad cost. I got the rotor bolts and sprocket nuts from Ebay a vendor from England, a little pricey.
I considered BST Carbon fiber wheels but for the street I worry about a possible failure. When Carbon fiber fails it can be catastrophic vs a failure on Magnesium is bad but not SUPPOSED to be as bad. But I know the possibility of a failure is small, just interested in weight reduction over stock, but it has to be enough to make it worth the price.

 

[09_Blade]

IMO the weight you save in the caliper/rotor bolts is tiny compared to the weight savings from a titanium axle. The stock axle is steel and it's very heavy despite being hollow.

Also can shave off several hundred grams with billet Brembo monoblocs that are shockingly light compared to the bulky cast OE calipers.

 

[Kidnplay01]

For me easier and cheaper to have a diet and lose more weight then Ti savings 😔

 

[jdgun]

IMO the weight you save in the caliper/rotor bolts is tiny compared to the weight savings from a titanium axle. The stock axle is steel and it's very heavy despite being hollow.

Also can shave off several hundred grams with billet Brembo monoblocs that are shockingly light compared to the bulky cast OE calipers.

If you ever get a chance to see how light the newer stylema calipers are, it will blow you away... lighter than the billet 2 piece calipers, and barring you running the billet monoblocks, better performance. Just wish the ones i had would of fit on the cbr.. the new cbr rrrrr has them, but pretty sure they are like every modern sportbike 100mm bolt spacing.

John Harris, like yourself i spend a fair amount of $$$ on titanium, just for more visual appeal, and also no corrosion. I did a 520 chain conversion as well, not saying i didnt drop any weight, but that stock 525 rear steel sprocket is lighter than my steel rs7 superlite..guess i should of went aluminum..

Anyone have a link to some tasty titanium axles?

 

[John Harris]

Titanium axles would be nice, probably expensive, but nice.
The SP has Brembo calipers and they are very light but I wonder what metal the pistons are made of.

 

[jdgun]

Titanium axles would be nice, probably expensive, but nice.
The SP has Brembo calipers and they are very light but I wonder what metal the pistons are made of.

The M4 are pretty hefty vs the stylema and a bit heavier than the M50 as well, given they work great. They have aluminum pistons in them already. The m4 calipers also seem to have more pad drag than both the newer calipers with the 30mm pistons. I have seen aftermarket piston kits, not sure about the weight, but in titanium and also stainless.

 

[09_Blade]

The M4 are pretty hefty vs the stylema and a bit heavier than the M50 as well, given they work great. They have aluminum pistons in them already. The m4 calipers also seem to have more pad drag than both the newer calipers with the 30mm pistons. I have seen aftermarket piston kits, not sure about the weight, but in titanium and also stainless.

The pad drag is due to the dust seal. Less to do with piston size. On my 32/36mm race calipers w/ no dust seals there is almost no pad drag and the front wheel just keep spinning and spinning with a light push.

I bought a little metal lathe to mess with turning axle. Practicing on Al for now (obviously would not use that for axle) but the main obstacle is machining an internal or external hex so the captive axle can be tightened.

 

[jdgun]

I get what your saying, some calipers are just better at having way less pad drag than others.. the R6 semi-monoblocks are one that comes to mind as is the sytlema, M50/GP-RS even with dust seals.. on your application for an axle, why not do something like the endurance teams use.. tap the one end and use a titanium bolt into the end of the axle, which also holds the pull cup on?? can shoot you pics of the fast frank axle i have if you like?

 

[09_Blade]

I get what your saying, some calipers are just better at having way less pad drag than others.. the R6 semi-monoblocks are one that comes to mind as is the sytlema, M50/GP-RS even with dust seals.. on your application for an axle, why not do something like the endurance teams use.. tap the one end and use a titanium bolt into the end of the axle, which also holds the pull cup on?? can shoot you pics of the fast frank axle i have if you like?

That would work for the 1krr stock fork bottoms (32mm-25mm-25mm) problem is that I'm currently working on an axle for the fork bottoms that have the same size hole on both sides (30mm-25mm-30mm). In that case, other end of the axle is smaller than the fork bottom so it's got to be either a threaded insert or collet to bring the 25mm to 30mm so the bolt will work.

Fast frank axles are beautiful!!! $1k+ is crazy expensive though.

 

[Bosston]

For me easier and cheaper to have a diet and lose more weight then Ti savings 😔

Best idea for dragging less weight around on your bike.. unless you're in super shape already.

You can easily loose 1 lbs per week, by eating less.

 

[John Harris]

Received the Titanium front and rear brake rotor bolts and the rear sprocket nuts.
The stock sprocket nuts weigh 13.5 grams and the Ti nuts weigh 5 grams each so 30 grams or about an ounce saved.
The stock rear rotor bolts weigh 12 grams and the Ti bolts weigh 6.5 grams so 22 grams saved.
The stock front rotor bolts weigh 10 grams each and the Ti bolts weigh 4.5 grams, for a 66 gram or 2.35 ounces saved.
So total a quarter pound saved, not much but the shine and corrosion resistance is nice so worth it to me.
Now, about that personnel diet, I can stand to lose a few pounds, to bad it is not a easy as unbolt and re-bolt.

 

[John Harris]

Should have stated a total of 51 grams saved for the rear sprocket nuts, brain calculator malfunction.

 

[Brock Davidson]

I got the caliper bolts off Ebay from a Chinese vendor, not bad cost. I got the rotor bolts and sprocket nuts from Ebay a vendor from England, a little pricey.
I considered BST Carbon fiber wheels but for the street I worry about a possible failure. When Carbon fiber fails it can be catastrophic vs a failure on Magnesium is bad but not SUPPOSED to be as bad. But I know the possibility of a failure is small, just interested in weight reduction over stock, but it has to be enough to make it worth the price.

Today's carbon fiber is extremely tough, that's why BST wheels are OEM on several brands (Ducati/Norton/Arch) now. Here is some info. on an owner who has logged 122K Miles (196K km): https://bit.ly/3leWsZc And here are mounds of data: https://bit.ly/35bvZ9e BST wheels are the single biggest improvement you can make to your bike.

Brock

 

[Old&Tired]

…. BST wheels are the single biggest improvement you can make to your bike.
Brock

This ^^^^^ is a true statement. Be aware of the implications though. If you spend the $$$$ for the BSTs on one bike, you will then require them on all your bikes! There's that much difference!

 

[HP17]

Today's carbon fiber is extremely tough, that's why BST wheels are OEM on several brands (Ducati/Norton/Arch) now. Here is some info. on an owner who has logged 122K Miles (196K km): https://bit.ly/3leWsZc And here are mounds of data: https://bit.ly/35bvZ9e BST wheels are the single biggest improvement you can make to your bike.

Brock

Glad to see you on our forum Brock. I watch your YT videos frequently. They are very informative
You could use some more Honda content though, whether it be a 2017-2020 1000rr or the new 1000rr-r. Shoot if I was in your area I would bring my 2018 CBR1000RR down to have you tune it but alas I'm on the West Coast. Where are you located again?

 

[RideRed341]

I got the caliper bolts off Ebay from a Chinese vendor, not bad cost. I got the rotor bolts and sprocket nuts from Ebay a vendor from England, a little pricey.
I considered BST Carbon fiber wheels but for the street I worry about a possible failure. When Carbon fiber fails it can be catastrophic vs a failure on Magnesium is bad but not SUPPOSED to be as bad. But I know the possibility of a failure is small, just interested in weight reduction over stock, but it has to be enough to make it worth the price.

Catastrophic is an understatement.

 

[John Harris]

Today I removed the front wheel to change the front fender to carbon fiber as well as exchange the caliper and rotor bolts for titanium ones. A jack stand under each foot peg and a rope around the handle bars and over the ceiling joist in the garage to hoist it up. Some weights:
The Stock front fender is 436 grams, the carbon fiber one is 328.5 grams.
The front axle weight is 383 grams, the axle nut is 73.5 grams.
The complete front wheel, rim, tire, spacers and rotors is 23.9 pounds.
Each stock rotor is 1237.5 grams.
And the little reflects weigh 24 grams each.
And the bike looks good.
Next is a tail fender eliminator and rear race rotor and titanium bolts and nuts.
Carry on.