RD400 Swingarm

[paul1478]

$800 seems fair for a one-off part. Maybe he would give a little discount if you could find a few members here who want one. 

I checked out his site. Pretty cool MX action shots of him back in the day racing with the big boys. '82 Anaheim Supercross 

This is a good idea. I wonder how many it would take and what the price would be. I would be in for 600.

[oxford]

FWIW, I am pretty sure the ones Bill was selling were right around $600. 

As far as aluminum arms go, if you aren't looking exactly for the vintage look those arms have the Moto Lana is a much better value and have a nicer look to them(IMO).

[m in sc]

exaclty. why the hell would anyone pay 800 bucks for a DG replica when the motolana arm is much better. just needs some tweaking

[RDFL]

Might be a opportunity for someone to buy, or have people buy and shipped to them to tweak Motolanta for fee, for those who can't or don't want to themselves. I do wonder why Motolanta seems to not like RD's.

[Organicjedi]

I paid $525 for my brand new one from Bill.

[rodneya]

Metmachex Engineering in England makes on as well.
No idea what it would cost though

[BCRD]

Can someone clarify exactly how a motolana swingarm has to be modified to run on a rd400.

[rodneya]

Not my measurements for the swing arms

Ds7,r5,rd250,rd350, rd400

total length 18' + 1 1/2 inch for rd400
7 13/16 axel spread
7 9/16 pivot
Pivot bolt 16mm (I think)


SR500
Swing arm pivot center to axle center in mid adjustment position - 18.25"
Pivot Width - 8.28
Axle Inside Width - 7.25"
Pivot bolt 16mm (I think)

Looks like toe pivot will need to be cut down a bit to fit the Rd frame, its a bit shorter than the 400 one and a but wider at the axle

[m in sc]

nathan was telling me when he did it it basically required a spacer at the RH side and not that much else. of course ou have to sort the rear brake but aside from that it wasnt much at all. I wish i had the old correspondance, he did lay it out

[pdxjim]

He's on Instagram at @kablazzie

I'll ask him to pop in here to discuss

[m in sc]

yeah, when he explains it this time it will go in the tech library. 

[oxford]

While not exactly all the info needed, if you search his old posts there is some info about it on this board.