Optimistic sellers

[Askor]

My 2012 Yamaha WR 450

We get it, you have lots of cool bikes

[HenryDorsetCase]

Oh matey potaty. Those SR500s are good for 27-28hp and there's a lots of piston and carb right there. You'd be spinning high 30s no doubt. Rip your arms out.

According to books what I have read, Norton Manx were good for 45hp - 50hp. so 40's seems reasonable. It weighs nothing too.

I'd just bout rather ride that SR500 than an R1 or whatever. Just not for the same investment.

Hell for that sort of money I would buy a BMW Rnine T (Id have to find 4 grand from somwehere)

[short shins]

Oh matey potaty. Those SR500s are good for 27-28hp and there's a lots of piston and carb right there. You'd be spinning high 30s no doubt. Rip your arms out.

Well the (sadly now gone) HVMCC ran a dyno night back in 93 my SR500 race bike with a Wiseco Hicomp piston (11.1 If I recall) Webcam WB2 camshaft and a 38mm Smoothbore Amal saw 40hp at the rear wheel.
as for that thing on trade me no thanks.. misguided at best

[OddDuck]

Have a closer look, you'll see the word "brembo" is the right way up and the bleed valve is at the top (where it should be) you'll find many bikes have the rear caliper on top. The pads gripping the disc is the main thing.

Yep, and that's how it is on my bike... on a fixed caliper, that is, one mounted to the swingarm. This is a floating caliper setup, where it rotates around the back axle and has a torque arm to the frame or engine.

[flashg]

Yep, and that's how it is on my bike... on a fixed caliper, that is, one mounted to the swingarm. This is a floating caliper setup, where it rotates around the back axle and has a torque arm to the frame or engine.

Ok now I get what you're meaning, mine all rotate around the back axle but lock onto the swingarm in a slot setup so it can move when adjusting the chain, which I think would be the most common these days I'm sure I've seen the setup that SR 500 has in the past, shouldn't be a problem as long as that rod doesn't bend, one would hope.

[husaberg]

According to books what I have read, Norton Manx were good for 45hp - 50hp. so 40's seems reasonable. It weighs nothing too.

I'd just bout rather ride that SR500 than an R1 or whatever. Just not for the same investment.

Hell for that sort of money I would buy a BMW Rnine T (Id have to find 4 grand from somwehere)

Tom Sifton got 54HP at the crank out of a Goldstar on his first atempt.
Std the DBD's Clubmans Goldstar engines were around 40HP
I can't remember what hp the Manx engine Hailwood won the IOM with was, (Bill Lacey built it and it was very special plain big end jag conrod etc) . But I think it was mid 50"S HP.

edit ok it was a fair bit more according to this

For the 1961 TT, Stan Hailwood asked Bill Lacey to build an engine for Mike, as he was without suitable machinery.
Bill had long held ideas about a special engine, so he set about the job, which entailed making a one piece crank, used with a D type Jaguar conrod, special oil pump, and a forged piston he obtained from Mahle. Bill also had cams made to his own design. All this with the bore and stroke left standard.
Bill had intended it to be best at 7500 rpm, but was pleasantly surprised to find it made 66 bhp at 7900 rpm, and was safe to 8300. This was crankshaft power, measured on Bill's Heenan and Froude DPX1 dynamometer.
http://www.accessnorton.com/speed-an...t23090-15.html

[F5 Dave]

Well the (sadly now gone) HVMCC ran a dyno night back in 93 my SR500 race bike with a Wiseco Hicomp piston (11.1 If I recall) Webcam WB2 camshaft and a 38mm Smoothbore Amal saw 40hp at the rear wheel.
as for that thing on trade me no thanks.. misguided at best

So my guess was probably spot on for that thing.
93, gee that's early I thought Chris's was first dyno in wgtn and that was like 95,96 I think. I was expecting to find your run backed up but only found one SR and it was his brothers. My TT500 felt fast. Until you got it on the motorway.

[Banditbandit]

According to books what I have read, Norton Manx were good for 45hp - 50hp. so 40's seems reasonable. It weighs nothing too.

I'd just bout rather ride that SR500 than an R1 or whatever. Just not for the same investment.

Hell for that sort of money I would buy a BMW Rnine T (Id have to find 4 grand from somwehere)

Yeah .. I love that SR .. but NO WAY at that price ...

[F5 Dave]

Oh matey potaty. Those SR500s are good for 27-28hp and there's a lots of piston and carb right there. You'd be spinning high 30s no doubt. Rip your arms out.

More pissing on that SR.
Late 80s Honda forks an disc. Standard wheels painted black. No name shocks. LVV required for brakes.

I remember a ride on an SR back in the 80s. Hinge in the middle handling with a dose of too much rake. You could buy a brace of overpriced RZ350s that would beat that SR in every way shape and form (especially looks).

What's the talk about Manxs? Hand built race bikes. Good for a few hundred k before a refit. GP bikes of their time.

[Grumph]

More pissing on that SR.
Late 80s Honda forks an disc. Standard wheels painted black. No name shocks. LVV required for brakes.

I remember a ride on an SR back in the 80s. Hinge in the middle handling with a dose of too much rake. You could buy a brace of overpriced RZ350s that would beat that SR in every way shape and form (especially looks).

What's the talk about Manxs? Hand built race bikes. Good for a few hundred k before a refit. GP bikes of their time.

Still more pissing...the early SR head is the worst of a bad lot. No mention of any upgrade I saw. You can port them all you like and still get nothing...
I always laugh when i see "dynamically balanced" attatched to a single crank.

[husaberg]

Still more pissing...the early SR head is the worst of a bad lot. No mention of any upgrade I saw. You can port them all you like and still get nothing...
I always laugh when i see "dynamically balanced" attatched to a single crank.

Cam and FCR carb plus high comp piston (from memory)

[Grumph]

Cam and FCR carb plus high comp piston (from memory)

Yeah, saw that but if it's based on the wrong head, it's money badly spent.

[husaberg]

Yeah, saw that but if it's based on the wrong head, it's money badly spent.

Yeah granted but what can you do. That bike seemingly was about the look rather than HP. It was a silly price but it was still nicely done, which is rare on this thread.
If you wanted HP you wouldn't choose a single anyway. Unless its dirt or a single cylinder only race class.
I posted this ages ago can you imagine building an modified engine without checking the piston valve clearances.
http://www.kiwibiker.co.nz/forums/sh...post1130860706
It says they were getting up to 60HP in the states but they might be American pony HP

[AllanB]

Aftermarket name brand pipes.

Yep - they cost a fair bit new. You love them. First decent $ modification on most NZ bikes.

But when selling used they are good for maybe 33.33% of what you paid for them.

So don't advertise them close to retail.

[RDJ]

Aftermarket name brand pipes.

Yep - they cost a fair bit new. You love them. First decent $ modification on most NZ bikes.

But when selling used they are good for maybe 33.33% of what you paid for them.

So don't advertise them close to retail.

You nailed it Allan. In good condition, not abused, scraped or dropped, most parts (and most bikes over 4 years old) are IMO worth about 33% of the purchase price. That's my personal guideline when selling stuff. And even then I am often over-optimistic :-)