Homemade Reduced Weight Bar

[SOS Ridgerider]

Sup dood!

Not much. Same old, same old. You?

 

[00wyk]

42mm carb on a 36 year old YZ125 bikesaw
View attachment 145344

My first bike was a YZ125 back in the 80's. Me and a friend bought it off the local bully for a couple hundred bucks. Yeah, it was likely stolen, but he stopped bullying us after we became customers. So there was that.
Good bike. I learned a lot on it.

 

[00wyk]

CR888, I bought my first special order race bar from Cannon 40 years ago in the first 2 pics below.

The trick with competition bars is to have it made as thin as possible for allowing those up to 40 hours to make race chains to cut.
A standard bar is any wheres from 0.180" to 0.200" thick, this 16" .050 bar Cannon made me in 1978 is 0.138" thick and weighs 1 lb. 14oz.

My 28" Cannon .063 hotsaw bar is 0.162" thick and 5 lbs 4 oz.
So custom race bars are considered weigh reduced with their thin profile.

Last 2 pics is my 20" Stihl Light bar at 2 lbs 1oz and a thick 0.186.5"
View attachment 145506 View attachment 145507 View attachment 145508 View attachment 145509 View attachment 145510

Windsor bars were like that(dunno if they still are), just a bit more thin than others. I also noticed some of the newer GB pro tops are also thinner.

 

[Willard]

My first bike was a YZ125 back in the 80's. Me and a friend bought it off the local bully for a couple hundred bucks. Yeah, it was likely stolen, but he stopped bullying us after we became customers. So there was that.
Good bike. I learned a lot on it.

That bully probably got into drug dealing too I"d imagine

Yep in 1981- 1982 the first liquid cooled bikes came out and pretty well changed everything in the MX125/250 class.
My '82 YZ125 here had the first powervalve which was big news then. The bike had this crazy strong WOT engine but the bike was 20 lbs overweight.
Speaking of stolen bikes this engine came out of one. Some kid stole the brand new bike right out of the dealers compound and totaled it over a rock cliff.
Insurance covered for the dealer and I got the complete engine and pipe for $200.

Presently got it in a rebuild project reversing its engine rotation and making it right hand drive again.
Powerhead without the 3 lb pipe weighs 29 lbs.
By the time I finish with it will be the weight of a 3120XP.
Working with some carbon fiber.
I really like my winter off season

 

[00wyk]

I think 'power valve' was what that bully called his girl friend.