Not monoshocked

[Graeme M]

No

[vmx42]

F%&K it     

Did I mention that I really like them…

[Marc.com]

I always claimed , a good set up Hi low twinshock  arrangement should work better than a Mono shock ( samer travel , same swingarm lenght )

You mean a bit like a KTM with 2 shocks. Guess that is one angle the Dutchies never thought of (yet), just whack another  shock on the opposite side of a KTM or ATK and you have a real contender. You could use one side for rebound and the other for compression .... cutting edge.

[Nathan S]

The other thing is that the Maico triple isn't being built for vintage MX.

The value of using an old MX bike to build a salt-lake bike is a seperate issue - 'needing' to butcher an old MX bike to make a VMX bike is clearly whacky.

[Husky500evo]

   I like the look of those bikes & after all they are only Yamaha's  . No great loss if they are chopped up & it is one way of getting rid of "Yamahop". I wouldn't care if they lined up next to me .
   I would however , arc up if someone lined up next to me with this double sided drum brake. Apparently, it works as good as a disc & I think it is legal in the Dutch Twinshock rules, because they take the drum brake wording of the rules literally as well . A bit of an unfair advantage really & I imagine it would be expensive as well , driving up the cost of the sport.

[LWC82PE]

ohh wow what is that drum brake off? very interesting. I wonder whats is strength is like on the inside though? its looke pretty small so i doubt its a really small Grimeca or something. Custom made perhaps?

[firko]

Shit...I've never seen anything like that before.
Curse those cunning clog wogs and their evil devil worship bikes. :'(

[Hoony]

2 TLS yamaha Z spoke hubs welded together by the looks of it.

i wouldnt like to launch that bike off a jump.

[Marc.com]

Hmmm me thinks those Fox Factory Forx may have graced a popular later model Suzuki trail bike.

If you make a double sided front out of period components then it should legal as it is drum brake available at the time, hmmm I have a couple of YZ wheels lying about.

[DR]

anything made up from components from the 'correct era' should be perfectly legal regardless..if the parts are correct era how can they be deemed incorrect?

if the hubs are like suzuki's lateral forces wouldn't be an issue as the bearings are positioned to sit just inside the backing plates so there'd be ample space between.

[Husky500evo]

The right hand side backing plate looks like custom made part , machined up as a mirror copy of the OEM Yamaha TLS backing plate on the left side. I am pretty liberal in my ideas of what the rules should be for Evo class bikes, but I have to say that this stretches the boundaries too far. There is no precedent for this set-up on any drum braked dirt bike that I know of , although I wouldn't be surprised if the idea was used on a road bike at some.

[DR]

yup, the quad leading double sided drums have been around on road bikes since the 60's but then so have disc brakes

[LWC82PE]

As long as they have made it using yamaha Z spoke hubs from that era or fabricated the hub from a block of alloy, i think its perfectly legal.

[Marc.com]

so who is going to be the first to copy it. 

[LWC82PE]

im not so sure about the strength of it so it wont be me.