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Great! Looks like about 5 1/2 of rise, yes? And 29" across. I should be able find something over at Economy Cycle with similar numbers.

Can  anyone give me the dimensions of stock bars for these bikes? Looking to buy an aftermarket set to bring my RD400 back to "original". Need rise, length & pullback of the stockers...

Thanks for all the good info, guys! Santa will bring me a better set of handlebars if I can tell him (well the wife actually lol) exactly what to buy. Looking at the Economy Cycle handlebar page now - which ones should she order? LTD? Daytona? It's hard to tell because I've never seen the exact rise & pullback of the OEM bars. The bike has euro-style bars on it now, btw.

Thanks! If I could get some good dimensions & photos of the tailpiece & trim, it might be possible to 3-D print a reproduction. (I do have the stock tail-light.) Do you know the dimensions of the stock handlebars, btw?

One of my winter projects for my "new" '78 RD400 is to get rid of the aftermarket seat & bars the PO put on the bike. Nothing wrong with the swoopy cafe racer seat but I'm trying to bring her back more to a stock appearance. Wasn't there a little cowl at the rear end of the stocker, too? (or did that only come on the Daytona in '79?) Re the handlebars - what were the dimensions of the stockers and does anyone know of a good source for a quality reproduction unit?  Thanks guys!

Still getting to know my new-to-me '78 RD400. Can't ride much due to our gawdawful rainy & cold PNW weather, but I'm wondering why the tach bounces around so much at "idle" speeds. The idle is probably set too high, btw, around  1800 -2500, but the tach bounces around a lot at those speeds only, like 1000 RPM deflection. Funny thing is, I just don't feel the RPMs are actually changing that much. Anybody else experienced this?

Thanks guys!!!

Hi All - Just bought a lightly resto-modded '78 RD400. Spec pipes, aftermarket intake, non-stock handlebars, seat & running lights, but otherwise exactly like the bike I drooled over as a poor college student way back in '78! It's a blast to ride, even though I feel it still needs some carb tuning. Starts on just one or two kicks - idles good - higher RPM power is almost more than I can handle, but there's a noticeable flat spot in the mid-range. Previous owner mentioned he'd been fiddling with different jet settings, and I agree there's more to be done there.

But my question concerns the "choke" lever. Is the engine "choked" when the lever is UP or DOWN? The bike seems to start equally well with the lever in either position. ???
Thanks!