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Though I'd put this here because of the topic; it would be a strength upgrade. This is for a TD3/TR3 or TZ250A/TZ350A, basically the same S/A as used on the Works RD56:

TD/TR/TZ Swingarm plus Axle

The Tach, choke lever, and carbs are TZ250/350 - just those 3 items would sell for 1/2 of the final price. 

im curious.  i def dont need an arm for anything but certainly eyeballed it. whats the arm length difference? not sure if it was mentioned

The max functional center-to-center length (S/A pivot to axle) is 20"

Overall length is 22"

Distance from S/A pivot to shock eye is 16"

Weight with bearings is 12 pounds

W

...but for that price you could have something custom made... that is a lot lighter

Just curious, how much cheaper and lighter?
So far, no one here has investigated the 2SW price, or asked the weight (consider, a TZ750 weighs the same as an RD250).
I HATE feeBay and their hassles/hustles, and price there accordingly. 2 different worlds... 

Warren

Probably a direct swap...

Width at the pivot is 200mm so is compatible. The advantages are the 4 roller bearings (side and shaft both), and the double-thickness arms spotwelded internally - that is why they are heavy. Builders from the day found stock arms the best for twin shock to mono-shock conversions due to their strength and rigidity.

The RD/LC pivot shaft would need a sleeve since the stock TZ750 is 20mm; easy fix. The complete axle with all spacers and adjusters and the caliper arm are also posted in separate listings and would make a nice kit:
TZ750 Axle Assembly
TZ750 Caliper Bracket

Discount price for everything!



 
 

'Suppose a TZ750 swingarm would be a bit of overkill - a bit heavy but it's a stout muther! Discount price for 2SW:

 TZ750 Swingarm

Yamaha did have some rather unique seals and bearings, like the TZ water pump, TZ750 lower steering head bearing, and the skinny outboard crank seals on TZ750 cranks, but renewing TD and TZ twin crank seals, I've used OTC after running out of OEM years ago.

I don't have any of the empty boxes from the OTC ones, but it seems they were 'SKF'(Asian) and usually had to be ordered; the RD and TZ seals are different part numbers, so that is probably the RD difference that makes them unique.

ww

I usually hit the local Bearing and Seal Supply store and buy OTC. They typically have what's needed on the shelf, and most seals can be had under $10 for top name brands such as TIMKEN, Fel-Pro, SKF etc. If in doubt, bring the old seal(s) with and have them match them up.

WW 

Thanks for the encouraging posts! I'm really stoked to have another RZ - been a long time...

Success - I'm picking it up on Monday!

Decent bike. Box-A miles (8400), and even has the original boat anchors (exhaust pipes).

ww

"Like riding a chainsaw."
FaceBook RD400 Custom

He called back - first refusal! I'm going to go look at it Saturday =)

Warren

- so I'll post a picture instead.

The seller bought the RGB500 (B is the race version) for $25K at the Chattanooga auction - quick? flip:

Facebook/Auction Suzuki RG(B)500 for $35K

ww

And today it's back! The Mod must have paid the bill or the cleaning lady finished vacuuming and plugged the server back in 

This topic reminds me of the website NATS (North American Two Strokes); it disappeared a few years ago without any notice or warning and some of the most comprehensive info concerning racing 2-strokes and especially the TZ's including an unofficial TZ750 Registry worldwide was permanently lost forever. Had any of the active posters known, the entire sight would have been backed up many times; I learned my lesson on backups, but too late. Now my 'Document file' has grown epically and saved to Flash Drive every week.

WW