Bike - Inertia Reduction

[seb421]

if i was to say change the sprockets for Lightweight Renthal's (but still with the same tooth size) and use a Lighter Chain and possibly a lighter rear wheel.

how much effect would this have on the bike?

would it give more bhp at the rear wheel because there shouldnt be as much loss through the drive train with reduced inertia should there?

[cupasoop]

i
how much effect would this have on the bike?

wombles all. They would just wear out quicker.

[Zakalwe]

Its a common mod on race and track bikes. Replace the 530 chain and sprockets with a 520. Slightly less friction, but a fair loss in weight (some of it unsprung). To be honest though, I doubt that 99.9% of riders would notice the difference, and if weight loss and performance was that vital it would be fairly unlikely that you would be running round on a old-tech heavy lump like a Firestorm?

For someone like me, I would probably experience the same weight savings by having a decent dump before going on the bike . At least with this method I wouldn't have the worry or expense of drastically reduced chain and sprocket life and I wouldn't have the niggling doubt that the chain could let go at any time....

[Jbrebel]

Cupa and Zak are spot on.

It'll make no difference at all for day-to-day riding.

[seb421]

No worries cheers for the info, was asking becuase i fancied black wheels on the bike and my sprocket is looking chewed up and soon will need another.

i was looking at selling this lump for an SP-2 in the summer but what ive looked at command a fair whack seccond hand, thinking of getting an RR3 now Like the dad hopefully before september, just need a few things putting right on the storm at the moment and if it was any benerfit bhp wise then i thaught go for it.

[seb421]

im not a fan of the 2004 onwards blades i do the like the rear end tho from the 2004 model

SP's are comanding silly money when i looked last week, and there a lots more blades to be snapped up for decent money.

[Jbrebel]

Not to blow ones own trumpet-I'd go for the SP every time and I've only ridden it 40 miles

Not ridden an RR3 but have put hundreds of miles on an 929RRY-its not even close. Not just ride wise but build, parts, etc, etc...

The SP ooze’s lushness everywhere...the corner exit drive is mad I'd bet the blade is as quick/quicker top end but the SP makes getting there much easier and much more fun.

Plus the SP has HRC written all over it-it's just a better bike imo, it feels special. It’ll always have kudos in spades.

But what would I know? I bought one...

[seb421]

the ones you see with RVT on the side and not VTR is that anything special or an import?

[Jbrebel]

American imports IIRC.

RVT US. VTR1000 SP1 or 2 UK/Europe.

[Zakalwe]

A mate of mine has an immaculate 954 for sale. Lemme know if you are interested an I will put you in touch.


"...... but for now it's in standard trim (incl OEM exhaust etc) except for...
full fork revalve and respring by Revolution (SP1 & SP2 suspension experts - done bikes for Macau, TT, Manx etc)
double bubble
stainless brake lines front (2) and back
Harris exhaust bracket (OEM rear pegs and hangers incl)

It had a full service before being laid up and has got a new pair of Diablos (IIRC) that have done less than 5 miles. It did have a new battery as well at the time though because it has a Datatool alarm it'll be dead as a Dodo.
It was in a previous life producing 145bhp at the wheel with an Akra pipe a PC3 (unfortunately I no longer have either!) and a custom map, so it was good for approx 170 and above.
It comes with both keys, both alarm fobs and all documentation."

[Zakalwe]

Not to blow ones own trumpet-I'd go for the SP every time and I've only ridden it 40 miles
The SP ooze’s lushness everywhere...the corner exit drive is mad I'd bet the blade is as quick/quicker top end but the SP makes getting there much easier and much more fun.

Hmm...I'd take that Pepsi challenge.
My SP1 made about 10bhp more, rev-for-rev, up till about 8kRPM. Then the CBR eats it alive. The SP1 made 77.01 ft-lbs peaking at 7500RPM...the blade makes 76.92 ft-lbs peaking at 8300RPM (all measured on the same dyno under similar conditions). The Blade is a lot lighter and with better suspension (or at least will be once I fit the WP shock thats been sitting in the garage!). I found the blade a lot easier to go fast on.

I wouldn't get too carried away with the HRC thing. I know this sounds like blasphemy (BURN HIM) but the SPs are not anywhere near the same league as the RC30s or 45s. The build quality is better than the blades though....even the modern blades build quality is nowhere near as good.

[Jbrebel]

Hmm...I'd take that Pepsi challenge.
My SP1 made about 10bhp more, rev-for-rev, up till about 8kRPM. Then the CBR eats it alive.

Yours is a new'ish Blade though is'nt it? I was talking 929

No what you mean re: the RC30/45- they are gorgeous. More a full blown HRC effort than the SP. I'd say the RC's are a full fat cake where the SP's have a dusting of HRC icing on the top.

Regards the SP/Blade-I still know what I'd rather have parked in the garage at the end of the day SP's are a modern classic imo. The only blade that'll have similar status are the 92 900RR's imo. They're all good bikes-ridden the carbed and injected models-but it depends what you look for in a bike.

Each to there own I suppose

[Zakalwe]

Hmm...I'd take that Pepsi challenge.
My SP1 made about 10bhp more, rev-for-rev, up till about 8kRPM. Then the CBR eats it alive.

Yours is a new'ish Blade though is'nt it? I was talking 929

No what you mean re: the RC30/45- they are gorgeous. More a full blown HRC effort than the SP. I'd say the RC's are a full fat cake where the SP's have a dusting of HRC icing on the top.

Regards the SP/Blade-I still know what I'd rather have parked in the garage at the end of the day SP's are a modern classic imo. The only blade that'll have similar status are the 92 900RR's imo. They're all good bikes-ridden the carbed and injected models-but it depends what you look for in a bike.

Each to there own I suppose

nah, its an '04 one.

I agree though...the SP will always get more attention at any meet!

[Jbrebel]

Saw one exactly like your old SP for sale last week.

Looked rather tastey

[seb421]

in regards to build quality the 954 ive ridden felt spot on and tight, made the storm feel like a shopping trolly in compariosn, it feels so well planted when your sat on it