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I always think of this Dirt Bike article whenever the subject comes up:
https://dirtbikemagazine.com/lightest-honda-cr125-ever-built-two-stroke…
Lightweight, strong, cheap. Pick the two you want.
I rebuilt the two front calipers on my road race bikes with Ti hardware. Even the 8 pistons.(they were the worst value, cause I can’t see them. But actually cheaper than genuine, and no corrosion potential.)
The tiny weight saving makes me happy - doubly so, as it’s “unsprung”.
The forged wheels saved a lot more. Both “unsprung” and “rotational”. (Still couldn’t swear I can tell the difference.)
“Oh look, Ti chain adjuster bolts!”
How do you think they weigh race cars?
https://www.summitracing.com/parts/pro-67644?seid=srese1&ppckw=pmax-tools&gclid=Cj0KCQjw2ZfABhDBARIsAHFTxGwzUnIhopqNTwiVw1NAUTPbzQe9ZdnuMjQ_HFRtljySbquUOQ7CBE4aAoukEALw_wcB
It is an incredibly accurate way to weigh, and can even give you the weight bias of your bike.
TokyoTiddler I believe it is here on Vital too with his Honda CR250. An incredible build with works parts too, and everything weighed on a scale showing the difference.
The Shop
DeCal Works Huge Plastic Inventory of UFO and Polisport kits.
Luxon 4-Post Bar Mounts
$189.95 - $239.95
Always wondered what it was like to ride.
167 lbs. Wowza. I thought I read all of the factory bikes are at the weight limit, and use purposefully positioned weight to reposition weight where they want it, typically lower on the bike (skid plate?).
Every race car I have seen weighed is on 4 load cells, all at the same time. How else do you know what your weight jackers are doing?
With one scale under each tire. I've done that countless times and no one I know only uses 1/2 scales to weigh one side of the car then the other
When I see articles on old factory bikes I always wish they would weigh them. Wasn’t too long ago there was a video with Wardy’s old factory SR125. Be cool to know what they really weighed.
If the wheels are level with each other it doesnt matter. Dont be so dense🤦♂️
Awesome man! I was just looking for this article and couldn’t find it. Sweet 👍
I would still like to have a list of all the parts and their manufacturers.
I sent Terry an email about this bike earlier in the week. I don’t know if the address I’ve got for him is still active, but here’s hoping!
How cool would it be to have an updated build like this?
That bike (167lbs) is about 29lbs lighter than a ‘23 GasGas 125 (carbed 196lbs). About 40 lbs lighter than modern 125s (207lbs).
Ti axles, swingarm pivot and linkage bolts would have to be the biggest weight saver on a modern MX bike, that didn’t compromise performance or reliability. Also lightens your wallet impressively.
Probably a bigger weight saving than replacing every other single fastener on the bike with Ti. (Which I would do if money was no object.
Tires would also be big gains. Especially easy to feel being “rotational”, and unsprung. Assuming the performance of the lighter tires is good.
Ti foot pegs and rear spring would help.
Most other savings are pretty small - the difference in weight between stock wheels, and the lightest available (that are strong enough) is not much.
Pit Row
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