Thanks Mickj, it's a 'series 1' 180 supplied by Sports Motorcycles with the 4c cams and hi comp pistons. Oh, and the original 110w alternator which means you wont make it home if you ride with lights on. The 120's did have some improvements going for them, but Laverda hard-nuts took the change in the same way some Dylan fans did when he plugged a guitar into an ampLovely, is it a full fat man's bike with a 180 or the boys version with the 120?
Thanks Gazza, parked next to a std Jota it looks tiny - seat hgt is about 770 and it weighs 172kg, not 234kg, but has similar ground clearance. When I built it I wanted to keep it looking Jota ish and so lots of Laverda bits were adapted where possible. I also wanted to keep the build period-correct using only shed tools that would have been available to Simon, the original owner in the mid 80's. I rattle-canned the bodywork and got great results, until I spilt petrol on the 'petrol-proof' clearcote. The tank then went off to the paintshop who did a proper job.Full marks for rare and exotic.
A Jota that probably doesn't let the tail wag the dog?
"Guess the rest . . . ." Sorry can't let you get away with that, I'd like to whole story please.
Glad you changed the seat for something very tasteful. What's going at the fork bottoms? Surly not some sort of adjustable trail?
No problem Gazz. The Spondon swingarm does pivot from the exact centre of the gearbox sprocket, something that you wouldn't see on a modern bike of more than 100bhp. This arrangement does tidy up chain wear but takes away the facility for limiting 'squat' when you get on the power exiting a corner, which then gives you understeer and has you heading for the edge of the track. Some superbike teams in the past would change primary gearing rather than mess with sprocket sizes on the final drive once their rider was happy with corner exit. Ohlins published a helpful pamphlet covering this issue andKevin Cameron does a great breakdown of the physics involved on the CycleWorld podcast (Youtube), and I,ve hopefully copied a link below.Thanks for fleshing that out a bit Simwoo. It just looks better the more I look at it.
I notice that they seem to have made the swingarm pivot as close to the sprocket axis as possible.
That's a nice touch, even though it does make the swinging arm look a bit clumsy. It certainly makes for a very smooth transmission when configured like that.
My own "Non-Monster" is built with the swinging arm pivot concentric to the motor and is super smooth.
I was just thinking it must be unique when Rob posted up his mates.. Like busses!
Hi Rob, 'Busses' indeed !an old friend of mine owns this one, used in the poster for performance bikes issue #1. currently a similar story, in boxes and he’s just trying to get all the parts together to put it back on the road. the v.rare mechanical anti-dive spondon forks having gone astray during storage and old dymag wheels being a bit of a worry.View attachment 20View attachment 21
Absolutely fine with that Rob. Please do.Si R (leaning against the lampost) is the guy my mate, another Simon, bought it off - circa ‘82. Apparently it had no cams or pistons in the motor when it was photographed under the Westway for PB.
I sent my pal a link, he’d love to ask you some questions if you’d be okay with that?
Sorry Folks, the relevant bit of the YouTube video that I linked starts back at the 17.45 timestampNo problem Gazz. The Spondon swingarm does pivot from the exact centre of the gearbox sprocket, something that you wouldn't see on a modern bike of more than 100bhp. This arrangement does tidy up chain wear but takes away the facility for limiting 'squat' when you get on the power exiting a corner, which then gives you understeer and has you heading for the edge of the track. Some superbike teams in the past would change primary gearing rather than mess with sprocket sizes on the final drive once their rider was happy with corner exit. Ohlins published a helpful pamphlet covering this issue andKevin Cameron does a great breakdown of the physics involved on the CycleWorld podcast (Youtube), and I,ve hopefully copied a link below.
It must be time to reveal your own Non -Monster now Gazz, cos unless it has 'Bimota' written on the tank I'm stumped . . .
Can't fault your taste in bikes, DukedesOK, seeing as no posts in this section yet, I'll go first (and also load some pics as a test).
Non-Monster you say;View attachment 1
View attachment 2
So now, I've shown you mine, show me yours.
That's definitely unique, flavours of Ducati, MV and Craig Vetter from the 70's (Triumph X75 designer)Sorry,couldn't resist
View attachment 24