=신차소식= Yamaha R1 Ohlins 2WD Review

[베이베기린(김상수)]

Can you still wheelie with 2WD?
Using pure throttle in first gear around the 6-7000rpm should have got the R1 skyward as easy as that. But no. With the rear tire obviously struggling for grip the bike lunges forward where it should have broken free of tarmac. But as the revs hit 9-8000rpm and the R1 really starts to sing with maximum power the front lifts clear. Clutch in-clutch out wheelie technique causes the R1 to loft as normal, but with maybe a few fractions of a second delay before it happens. So the answer to whether a 2WD road bike can still wheelie is yes.

Does 2WD have a weight penalty?
The Ohlins R1 is a 2WD test mule. As such the present system weighs in a shade under 6 kilos, which isn’t a lot – although this is noticeable with high speed rapid changes of direction at, for example, a track. A factory production bike could see a weight loss depending on final specification.

Does 2WD affect braking?
Because the system only works with rear wheel slip under acceleration, 2WD doesn’t affect braking in any shape or form, front or rear. Although the front wheel is custom-made to accommodate 2WD, the disc mounting points are stock R1, as are the calipers, wheel spindle etc.

If a bike has 2WD, traction control and ABS, will it be so safe to become boring?
With traction control on a bike like Ducati’s 1198S, you can further explore your track riding limits, while making road riding a much safer place. 2WD should be viewed in the same way. To put it another way: whoever thinks Honda’s 175 hp CBR1000RR Fireblade with ABS is boring obviously hasn’t ridden one.

 

 

 

Ohlins 2WD: Past, Present & Future

 

Ohlins’ R1 is the tip of a 2WD iceberg that saw at least two European manufacturers come “very close” to launching all-wheel-drive superbikes and adventure machines, according to the engineers who designed the system and serviced Ohlins-provided manufacturers’ prototypes. Ohlins founder Kenth Ohlin says he’s “completely clear that manufacturers must offer 2WD if high-power bikes are to remain on the street.”

Lars Jansson and Leif Gustafsson of Ohlins’ Future Projects R&D department designed the hydraulic 2WD system at Ohlins’ then-owner Yamaha’s instigation in the early ‘90s. Beginning with a proof-of-concept 2WD 600cc single the results were so encouraging a succession of prototypes followed, including TT600s, a Ténéré and two R1s. Response was so warm from manufacturers who tested the R1s that several commissioned 2WD bikes of their own. Gustafsson remembers one European manufacturer testing its 2WD V-Twins so much they were returned for servicing at Ohlins “again and again” over a period of two years. Another was “within months” of launching a 2WD version of an adventure bike. Yamaha itself was particularly interested in a TDM-style R1-engined 2WD bike Gustafsson says was even more enjoyable to ride than the R1.

A failure of nerve and the relative lack of commercial success of the non-road-legal WRF450F 2-Trac meant the project hasn’t became a production roadbike reality. But within Ohlins development has continued: new patents were taken out as late as 2006 and a next-generation system to that on the R1 exists in a state of production-readiness. Kenth Ohlin says the project isn’t dead but merely waiting: “If we are going to keep these kinds of high-power bikes on the street in the future we are going to have to have 2WD. It’s simply much more safe. But we are not a motorcycle manufacturer, and all new technologies take a really long time to be accepted by them.” Ohlin believes manufacturers’ hand will be forced in the direction of 2WD: “Manufacturers have a responsibility to their riders to allow them to use the power of their bikes safely. 2WD makes it easy to take corners safe and hard. We were five seconds a lap faster in the wet, immediately.”

Project leader Jansson says production 2WD will be more discreet than that seen on the R1: “Incorporated as part of the bike’s original build the 2WD system will blend into the bike.”

 

 

[천용복(白頭山)]

필요 없음~~~

[베이베기린(김상수)]

할 말 없음~~~

[은둥이]

오프로드에선 쓸만하겠네요 ㅎㅎ..

[T.황소]

오프로드 머신에도 있습니다다,, 08년도말 쭘 나오진 했습니다.. 외국에서는 시합에서 가끔 보입니다, ㅋㅋ

[SUBA]

2륜구동이라....

[츅125]

2륜구동으로 하면 뭐가 좋아지나요? 동력전달 면에서 약간의 상승효과가 있겠지만 그게 그렇게 크게 효과적일까 궁금하네요.

[박하사탕(김성기)]

탈출 가속, 시간 단축 일까요?

[삼시기72]

양쪽 바퀴의 마모속도가 똑같겠군요.....ㅡ,.ㅡ