Speedo washer

[The Sock]

I didnt supply the frame diagram, that was Wayne out of the USA and a handy diagram it is. I think you need to refer to other frame members as using anything while it's on its wheels won't help. It needs a datum as a starting point to check frame angle and alignment. Best with some kind of rod extending through the steering head and swingarm pivot. I am a big fan of Motoliners, jigs with hydronic rams for frame alining, not so common around these days. You need to alien from the swingarm pivot centre.

Apologies!
Corrected.

 

[Vince]

Computrack was started in Sydney, by a bloke with Laverda racing experience. Greg McDonald Ask around and you will find there is usually someone who does frame and crash repairs in your area. We have Lorry Alderton in Sydney, Red has a bloke in Brisbane. But I do like Motoliners, just make sure they have a good rep especially with the local race teams.

G.M.D. Computrack - GMD COMPUTRACK Headquaters

 

[beauchemin]

I would bring it there totally naked...

That will raise some eyebrows

 

[Dellortoman]

I would bring it there totally naked.

Check with the frame guy first. Some of them like the swing arm and rear wheel attached, and possibly the front end too so they can align everything.

 

[Vince]

Here is an example of what a Motoliner Jig is. They have been around for a long time. I had the frame on an XT 500 Yamaha modified in one probably 30 years ago after graphing later suspension bits on it and it ended up handling like a Chpper, they pushed the steering head in approx 5 deg and it became much better to ride.

Motorcycle Frame and Wheel Straightening Experts - Maidstone Motoliner

Specialised in motorcycle frame straightening or damaged motorcycles and parts. Including chassis, frames, cast / alloy wheels, discs , forks, yokes, handlebars

www.motoliner.com

 

[sfcpiet]

Imagine following scenario; Casually cruising along at 80-90km/h without a care in the world when suddenly the dozing cage driver in front of you decides to hit the brakes because he missed his turn-off. You have just enough space to "safely" slam on your brakes to avoid rear-ending him. But your mudguard bracket whacks into the centre header, ripping the handlebars from your grip (casual, remember?) and turning the front wheel full lock. You find yourself sliding down the road on your face, quicker than you can mutter "WTF?"

When are you getting around to fixing the frame?

Stiffer springs will not prevent the contact, only limiting fork travel might. Check distance between front axle and front engine mount with fork fully extended and compare to a known, accident-free bike with same type of fork.

I've seen this sort of damage dozens of times, it's always been previous crash damage. The pictured frame is just one of many and had apparently been used for quite some time in its damaged condition before being "repaired". I advised the owner to replace it, not only was the top tube mangled beyond repair, the headstock was gusseted with snot-welding and the wheels were no longer aligned. He was completely unaware of the situation, having bought the bike in this condition. Crap pics from a crap phone, sorry.

"Repairs" to this issue have also included cutting out a section of the rear mudguard loop, or fitting a later mudguard without the loop bracket.

piet

 

[3C-Wayne]

I would bring it there totally naked.

Miguel

The motor needs to remain in the frame as a structural support. If the motor is out and the frame and is straightened the motor mounts may not line up upon reinstall.

 

[michipons]

The motor needs to remain in the frame as a structural support. If the motor is out and the frame and is straightened the motor mounts may not line up upon reinstall.

True… would be good to talk about the straighting procedure may be… good point regarding the engine!
Anything else that a normal workshop may skip with our Laverdas?