so when I was on lunch today I went to the grocery store next day and browsed thru a mx mag...in there was an article about an all wheel dirtbike...its avialable for honda's I forget what model and I think it was called the christina or something..anyone heard of this? the mag said it will probably eventually take over mx just like 4 strokes are doing now.
all wheel dirtbike
- Thread starter cawkazn
- Start date
SpeedyManiac
Member
- Aug 8, 2000
- 2,374
- 0
Here are a couple of pictures I shot of the bike at Indy in Feb 2006
- Aug 2, 2000
- 13,504
- 19
well, it's grubby enough that it must actually work!
yamaha sells em, just not in the US:
http://www.yamaha-motor.co.uk/products/motorcycles/competition/WR450F_2trac.jsp
also found this on the site:
http://www.dirtrider.com/news/141_0406_two_wheel_drive_dirtbike/
anyone know how much one of the Christini AWD frame kits go for?
http://www.yamaha-motor.co.uk/products/motorcycles/competition/WR450F_2trac.jsp
also found this on the site:
http://www.dirtrider.com/news/141_0406_two_wheel_drive_dirtbike/
anyone know how much one of the Christini AWD frame kits go for?
Last edited:
IndyYZ85 said:
OUCH! does it cook me dinner and give me sexual gratification? cus at that price it better.
wish they had better pics of the actual inner workings of their systems on their site. i really want to see some detailed pics of the steering head gear system. One day, oh yes one day, i will finally build my own.
I'll be going to the Indy Dealer Show next month and will be getting some very detailed pictures of the various parts of the system.
KiwiBird
LIFETIME SPONSOR
- Jan 30, 2000
- 2,385
- 0
I've had a really good, close up look at this and it's impressive, albeit a little complicated.
There is a shaft with a torque limiting clutch running from the back of the sprocket you see in the picture up to the steering head (which is all replaced from stock) and that feeds gears in a new triple clamp and shafts (with sliding bearings for no stiction) down to the front wheel equipped with a sprague clutch. It uses 2 shafts so no torque steer.
I've got mixed feelings about this system versus the hydraulic Ohlins one on the Yamaha. Christini's system has very little power loss but is complicated and has more stuff to break whereas the Ohlins one is relatively simple (and almost a simple bolt on) but has a parasitic power draw of about 4 hp and possible torque steer issues. Yamaha (who has a share in Ohlins) has been messing with their system for over 10 years.
Both options have issues with fitting large tanks at this time.
The AMA has banned 2 wheel drive in some classes in a pre-emptive strike so they must think there is some advantage to be had. 4 wheel drive revolutionized rally cars and 2 wheel drive "could" do the same for bikes.
Christini are selling the Honda kits now and will be adding KTM next. KTM frames will be changing in 2008 (SX in 2007) so I'll be looking at this closely.
Fun times we live in :aj:
There is a shaft with a torque limiting clutch running from the back of the sprocket you see in the picture up to the steering head (which is all replaced from stock) and that feeds gears in a new triple clamp and shafts (with sliding bearings for no stiction) down to the front wheel equipped with a sprague clutch. It uses 2 shafts so no torque steer.
I've got mixed feelings about this system versus the hydraulic Ohlins one on the Yamaha. Christini's system has very little power loss but is complicated and has more stuff to break whereas the Ohlins one is relatively simple (and almost a simple bolt on) but has a parasitic power draw of about 4 hp and possible torque steer issues. Yamaha (who has a share in Ohlins) has been messing with their system for over 10 years.
Both options have issues with fitting large tanks at this time.
The AMA has banned 2 wheel drive in some classes in a pre-emptive strike so they must think there is some advantage to be had. 4 wheel drive revolutionized rally cars and 2 wheel drive "could" do the same for bikes.
Christini are selling the Honda kits now and will be adding KTM next. KTM frames will be changing in 2008 (SX in 2007) so I'll be looking at this closely.
Fun times we live in :aj:
4thGearAndPinned
Mod Ban
- Nov 25, 2006
- 259
- 0
If you ride in shorts you're doomed!BSWIFT said:
KiwiBird
LIFETIME SPONSOR
- Jan 30, 2000
- 2,385
- 0
Well I rode the Christini on Sunday up at Gorman in very slick conditions. Rode 2 bikes - a Honda 250X and a 250R both with a big bore kit.
The bike rocks! They're going to have the 450 finished soon - just waiting on the tank mold.
They will do a KTM 4 stroke next.
The bike rocks! They're going to have the 450 finished soon - just waiting on the tank mold.
They will do a KTM 4 stroke next.
- Aug 2, 2000
- 13,504
- 19
and Kiwi, with his lack of won't power, will own it. ;)KiwiBird said:
2strok4fun
Member
- Apr 6, 2002
- 1,085
- 1
Kiwi with all wheel drive? :p
I dont think I will follow him.
"Sure, no problem, c'mon mate right up that little section then its really fun"
I dont think I will follow him.
"Sure, no problem, c'mon mate right up that little section then its really fun"
