RADIAN SWINGARM FOR XS650?

[Knobzilla]

HELLO FELLOW PEG GRINDERS. I MX A STOCK FRAME 1973 XS650. I AM TOLD THAT A YAMAHA RADIAN SWINGARM WILL FIT THIS BIKE. I AM LOOKING FOR MORE RIGIDITY AND LESS WEIGHT (THE OVERSIZED MAN CARGO IS ENUF). ANY IDEAS ON THE RADIAN...IS IT LIGHTER...WHAT YEAR OF RADIAN WILL BOLT UP...ETC. THANK YOU AND HAPPY MOTORING.

 

[jetmechmarty]

The Radian swingarm is made of steel. I believe it’s heavier than the stock part.

 

[Adamc]

HELLO FELLOW PEG GRINDERS. I MX A STOCK FRAME 1973 XS650. I AM TOLD THAT A YAMAHA RADIAN SWINGARM WILL FIT THIS BIKE. I AM LOOKING FOR MORE RIGIDITY AND LESS WEIGHT (THE OVERSIZED MAN CARGO IS ENUF). ANY IDEAS ON THE RADIAN...IS IT LIGHTER...WHAT YEAR OF RADIAN WILL BOLT UP...ETC. THANK YOU AND HAPPY MOTORING.

I have a Radian in my Tracker ‘Taffy’.
its box section and larger than stock so probably heavier.
A lot stiffer than stock. And with a bit of welding you can change the shock mount position.

 

[5twins]

However, it may not work on your early frame, I think your swingarm is shorter than on the later models.

 

[Knobzilla]

However, it may not work on your early frame, I think your swingarm is shorter than on the later models.

thank you...i believe my sled is 1973

 

[5twins]

Yes, that's still considered an early type. The frame and swingarm were changed in '74.

 

[Knobzilla]

Yes, that's still considered an early type. The frame and swingarm were changed in '74.

PERFECT AND THANK YOU!

 

[OHRider]

Installed one on my 78 SE. Had the axle hole milled out for the bigger axle. Shimed the shocks out about a 1/4 inch. Kaw KZ750 hub.

 

[Knobzilla]

The Radian swingarm is made of steel. I believe it’s heavier than the stock part.

Thx brother

 

[Knobzilla]

Installed one on my 78 SE. Had the axle hole milled out for the bigger axle. Shimed the shocks out about a 1/4 inch. Kaw KZ750 hub.

Wow, what an upgrade

 

[gggGary]

Radian arm next to a 72 arm, mebby 2 1/2"" longer.

It's wider at the axle plates than the early bikes also the top and bottom shock mounts will be rather offset from each other.

 

[5twins]

What about the pivot width? Larger as well?

 

[gggGary]

What about the pivot width? Larger as well?

Maybe? but didn't check (yet)

 

[magoo66]

Installed one on my 78 SE. Had the axle hole milled out for the bigger axle. Shimed the shocks out about a 1/4 inch. Kaw KZ750 hub.

I’m wanting to build a couple like that.Could you share the steel tube size.TIA

 

[magoo66]

Radian arm next to a 72 arm, mebby 2 1/2"" longer.
View attachment 248767
It's wider at the axle plates than the early bikes also the top and bottom shock mounts will be rather offset from each other.

Is that 1x1.75 tube?

 

[magoo66]

I’m wanting to build a couple like that.Could you share the steel tube size.TIA

I’m clarifying. I’m building a couple similar to yours.The O.D.of main arms is what I’m interested in knowing.

 

[gggGary]

Radian swing arm swingarm dimensions measurements inches length width height axle pivot center shock mount

 

[gggGary]

@Adamc talk about autolike....

 

[magoo66]

Radian swing arm swingarm dimensions measurements inches length width height axle pivot center shock mountView attachment 249449View attachment 249450View attachment 249451View attachment 249452View attachment 249453View attachment 249454View attachment 249455View attachment 249456

Thank

Radian swing arm swingarm dimensions measurements inches length width height axle pivot center shock mountView attachment 249449View attachment 249450View attachment 249451View attachment 249452View attachment 249453View attachment 249454View attachment 249455View attachment 249456

Thank you Thank you

 

[gggGary]