Works beautifully in Spa out of what used to be the Bus Stop chicane. While all others with heavy cranks and road 'boxes need at least 2 gear changes heading to la Source, I just keep it nailed and fly past when they attempt to jerk into the next gear. I think it tops out at 135 if I'm really determined, with a short burst in 2nd before heavy braking into la Source. Most of the rest of the track is about raw power... and big balls.I did cover my arse and say it was a 'guess'
Totally agree about lighter cranks - the factory should have sold SFs with SFC cranks - they could have easily started with triple webs 3 and 5.
130 in 1st Piet!! You're basically running the eq of my 2nd and I'm running very tall gearing (19-36)! Definitely not road bike stuff those racetrack 1st gears - noticed on the vid of IoM someone posted (Hailwood et al) the two stroke guys were slipping the clutches like crazy out of tight hairpins.
That's it, that's the ticket, I have to get some bigger balls!!!I think it tops out at 135 if I'm really determined, with a short burst in 2nd before heavy braking into la Source. Most of the rest of the track is about raw power... and big balls.
… it’s simpler and cheaper
But sometimes you can shed too much weight, which makes man handling a Laverda triple around the workshop etc a hazardous occupation. I'm hoping to put on some weight over Christmas!We often talk about the various ways in which mechanical components could be made lighter. Often, a few kilos can also be shaved off the rider’s weight
depends on which crank version we start with it generally works out between 4.2 - 4.8kg
20240802_161911
Hear hear!! From my personal experience I think one of the most impressive things about a Breganze twin is that being basically a mid-60s design and manufacture, you can take the whole package and turn it into something with genuine performance even by today's standards (ie like-for-like capacity wise and number of cylinders)), retain the reliability, and upgrade the rolling chassis without overstressing anything. Red's done something similar with triples, albeit the Scorches having completely redesigned frames. The one downside i haven't been able to 'modify' out of a hotted up twin is vibes. Without a counterbalancer I'm stuck with what I've got. Fortunately it's more than acceptable at anything under 5k, which is 145kph.
While the Yamaha TX500 only had a 5-speed box in 1973, it won the 4-valve race pretty distinctly. Suffered form the same ailments that would strike the 500 and its derivants later.And of course the Laverda 500 twin led the way with 8 valve heads and 6 speed gearboxes.
Ernst Henry developed a 4-valve OHC twin for Peugeot in 1911-12. Hardly a "production" engine though.
..........................It`s electrics and associated components which will limit the service life of the current breed of motorcycles ....... I wouldn`t bet on getting replacements when something stops working or overheats the moment it realises the warranty has expired .........
And manufacturers themselves don`t help ........... Try getting hold of a new thermostat housing for a 1998 Triumph T595 Daytona .................
And what is it with wiring ? ......... They seem to use the lightest gauge possible , and then some .........
Ok , it will carry the amps , but I make a point of replacing this dental floss with 28 / 0.30 at every opportunity ..........
Case in point ...... I`m now repairing a blue / white on this particular motorcycle which someone had spliced into to fit a bloody useless alarm ( probably insisted upon by an equally useless insurance company ) .......
This blue / white is part of the feed from the starter switch and connects the safety cut out relay to the starter relay ...... so it`s quite important , but the inner copper core is about the width of a gnat`s cock ......... I look at it and think surely the whole question of whether the bike will start or not can`t be down to this pathetic little piece of wire ? .......... But it is ...........
Surely it can`t be down to price ... although if you`re buying miles and miles of the stuff maybe it is ...... and maybe if you have to bundle lots of it together in a loom . or going into a connector then the slightly smaller outside diameter may make a difference , but now I`m just thinking up excuses for them .......
Why why bloody why ? ..........
Practicality and longevity, on the other hand, are anathema to sales brochures.
