2 wheel drive systems ect

[retrofly]

Erm just thought about opening a topic on 2 wheel drive systems and front swing arms, any thought or views, write em down.

I heard that the two wheel drive system could increase conner speed dramatically , but stop wheelies from bein done . Oh yeah and what is the benifit of a front swing arm?

[Chills]

[retrofly]

well the thing about the wheelies is that the power is always going to be less and due to as you said traction controld even more power would be delivered to the front wheel, Thats what it said in MCN anyway

Luke

[Korn]

No on my bike, sonny jim. Mind you it would work well on big tourers and cruisers but nobody buys sportsbikes because they're safe or easy to ride.

[G]

I haven't seen any articles recently but two wheel drive seems a good idea if it means yuo can accelerate faster (wot, 0-60 in 3 seconds not fast enough?) From what I've seen of the R1 system it would only give the front 20% of the power so there should be plenty left over to wheelie (it'd do odd-gyroscopic style things to the front wheel while in the air though), hopefuilly you'd be able to turn the whole system/the traction control off.

Front swingarms (can't remeber the proper name) should seperate the breaking and suspension (something like that anyway) so that the bike doesn't dive under braking. You can only steer by countersteering so I'm not sure what low speed manuaverability would be like.

[G]

just remembered: hub center steering

[Guest]

front swingers are known to become unstable when cornering at speed also maufacturers are reluctant to put them on race bike due to there being less feedback from the front end to the person riding the bike

[craigT19]

i agree
____________________
Bikes owned :- 2001 nsr125, 1999 zx6r, 2006 yzf-r1, 2009 xmax 250, 2012 yzf-r1, 2015 MT-07
Current bike : - 2016 MT-10
BCF member pops. sadly missed 1945-2003

[Kickstart]

I would think that the 2wd system would make cornering faster, and make it easier to wind the throttle open harder on the exits of bends.

Hunb centre systems work quite well, but they are pricey and for most people they are so alien that they need an awful lot of practice. As has been said, the braking force is fed into the front arm, so the bike doesnt dive under braking. This was you dont use up 90% of your suspension travel just on the brakes. Most of them do dial in a small amount of the braking effort into the suspension just to make it feel slightly more normal and give the rider some idea of how hard they are braking.

The have been 2 systems sold really. Bimota was the Tesi and Yamaha with the GTS1000. The Tesi system worked very well, but the bike was not cheap (£25000, over a decade ago) and was a pig to work on (chatting to owners, a full service is 35 hours work as you bascially need to drop the engine out to change the cam belts). Bimota made 366 bikes (plus another 50 of a 400cc version for the Japanese market). Other problem is that you could easily change so many bits of the suspension geometry it could be made to act quite horribly with virtually no effort at all. Then you had the fun when play developed in any of the (many) joints in the system.

The GTS1000 system worked well, was a fair bit cheaper (and being based on the old FZR engine, servicing was minimal anyway), but I hear that it was originally going to be a sports bike but they could not get the weight down. Furthermore with a single arm at the front (the Tesi used 2 arms) you only had space for a single disk brake.

I quite fancy a Tesi, and I know of one that comes up for sale occasionally (first time for £5500, second time for £7100), but the servicing would cripple me. A GTS1000 also appeals but they are far from common.

All the best

Keith

[Peje]

Ne1 gona get 1, doubt it!!!!!!

It'd cost a bloody fortune!!