Rohan said:So how can a 1973 bike/test have Mk3 pipes ??
Rohan said:And what does the ftlbs @ rpm actually work out to be ?
acotrel said:Is there something important about the top speed of a bike or it's time over the 1/4 mile ? I would have thought the weight, handling and the speed the bike gets around corners into the next straight piece of road is more important. I've never used my bike for a sprint or a land speed record, and I would never attempt either activity. What do they prove about the rider's skill ? If you are trying to prove the owner is good at getting performance from the engine, you can do that with a dyno.
acotrel said:Is there something important about the top speed of a bike or it's time over the 1/4 mile ? I would have thought the weight, handling and the speed the bike gets around corners into the next straight piece of road is more important. I've never used my bike for a sprint or a land speed record, and I would never attempt either activity. What do they prove about the rider's skill ? If you are trying to prove the owner is good at getting performance from the engine, you can do that with a dyno.
pommie john said:Marketing.
It still happens today. You can't sell a new bike that's slower than last year's model. People won't pay more money for less performance.
L.A.B. said:What it says is Mk3 pipes, STD silencer, as this graph is dated May 1973 "standard" obviously refers to peashooters, not what eventually became the standard black cap 850 MkIII silencer referred to on the graph as the "Mk1A" silencer.
Rohan said:pommie john said:But didn't the Mk 3 have slower numbers (and more weight), even though the claimed hp and performance didn't alter. ??
How is top speed relevant to road motorcycles?
acotrel said:If your commando will pull 120MPH at 6,400 RPM, I think that is lovely. .