The gears CAN be used without modification, but I modified the notches a bit so they fit better in the adjacent gear. This implies "shaving off" about 1mm from the outside of the notches. I think this is necessary because the area that the forces act on is larger that way.
Shifting down is not a problem, but be aware that from 4th to 5th lowers the rpm with about 1500. That is a lot.
You are right about the speeds, we went uphill (and down also) quite fast. But what should you do when you must keep up with those guys?? Luckely the French are not that bad at all, as long as you keep your speed down inside towns and cities. They just love bikes!
TC, I will send you the Excel sheet. Makes life easier I guess.
My cruising range is now about 300km on a (23 liters) tank before the darned red light. Remember that I modified the tank, but while having a cruising speed of 150km/h the bike does 15km/liter. Which is quite good with this setup IMHO.
Is it worth the trouble? Depends on what you use the bike for and at what speed.
For cruising on the highways in Europe (speedlimit 120-130km/h, 75mph) this gear setup is ok. At lower speeds I would not recommend it, because you are running at only 3000rpm at 88km/h (55mph)... Add to this the "smooth" running of the stage-7 kit.
Remember the 24/30 setup of the Eiffelmax (F. Wurth in Germany). This might be a better one for the USA.
As far as I know now the Venture gears (NOT called Royal Star in Europe!) might also fit. (Royal Star is 21/28)
Part#: 4XY-17251-00 4XY-17151-00 (This is 22/28.)
Patrick Kuyper
Vmax Club Holland
The Netherlands
-----Original Message-----
From: TC [mailto:[EMAIL PROTECTED]]
Sent: woensdag 7 juni 2000 17:36
To: V-MAX TECH LIST
Subject: Re: 5th gear replacement - first report
5th gear replacement - first reportPatrick,
You are just too much ......... your an animal !! OK .. I have a
couple of questions ....
Did the Royal Star gears go into the transmission without
modification.
I realize that 5th is now a "big" overdrive but that was the whole
idea ... is it "that" much of a problem to simply downshift when
things get serious ?? I noted your comment ... "when you need 5th for
racing there is too big a gap" ....... Patrick .. Patrick .. Patrick
.. what are you doing ??!? You are going to jail ... even with the
"lower 9/33 rearend" you can do over 130 MPH in 4th .. approx 215 KMH
...
I have to do the math with the speeds you posted but I assume your
bike, being Euro spec is running the "higher" rear end gears anyhow,
(10/33 ring and pinion set as opposed 9/33).
Do you think this increased your cruising range sufficently to make it
worth the trouble ?? (when you can keep your fist out of it ??)
At any rate ... absoutely fantastic ..... thanks for putting this to
the test ..... Wow !!
campbell
>>>>
----- Original Message -----
From: [EMAIL PROTECTED]
Subject: 5th gear replacement - first report
Hi all,
I mentioned a few weeks ago that I was experimenting with the gears
from my Vmax.
Last week I was on a holiday trip to the Vosges (Vogezen) in France
with 15 friends in total.
A good place to try out some of the settings of the bike. Perfect
roads, not much traffic and some friends with bikes that perform well.
(Honda VTR1000-SP1, Yamaha R1 and a tuned Ducati M900)
The gears shift ok, rpm dropped to about 5100 at 150km/h.
Ideal for long trips, it saves fuel which is quite expensive here in
the Netherlands (f2,71 per liter!!)
The bike pulls less than before, but this is obvious. On the highway
it's ok.
Top speed is about 260km/h (8000rpm) at the moment. This is not ok
yet. The top end of the bike is not optimal yet. I am working on this
this week. Although with this setup the bike will not reach the red
line on the tach. In theory this would be 300km/h...
It was not setup for top speed, but for 5th gear highway cruising at
120-150km/h
While driving (racing!!) up and down the curved roads the gap between
4th and 5th is quite large. Flat out in 4th uphill and than shifting
to 5th is no good. The 5th is clearly an overdrive.
Conclusion:
For long trips and high cruising speeds (120-160km/h, Europe) and
"normal" driving this setup is ok.
When you plan to use the bike for racing and you need the 5th, the gap
between 4 and 5th is too big.
I think for a very strong engine (1500cc) this is a good setup, for
the standard bikes this will be overkill.
Also low cruising speeds will bog the engine too much.
Parts used:
gears: 4NK-17251-00 4NK-17151-00 (royal star)
Hindle 4-1 Carbon stealth
Stage 7 kit
Dymag 17" rims
Bridgestone tyres: 170/60-17 (BT57) and 120/60-17 (BT56) I can sure
recommend these for grip! It cost me the footpegs and the lower
fairing of my bike...
Ciao,
Patrick Kuyper
Vmax Club Holland
The Netherlands
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