mcatrophy
Privileged to ride a 2018 FJR1300AS
In our (UK, probably EU) case, it's a legal requirement that they must not read slow. I would expect Yamaha to read this across to all markets, whether their laws require it or not.
Final Drive Swap: 6th gear solution?
- Thread starter Mr. BR
- Start date
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Hornet Pilot
Viper Pilot
I really did not notice any MPG difference with the final gear ratio change. I just wanted to slightly lower revs when buzzing along the slabs for long distances. On my 05 the speedo reading is sensed off a transmission gear hence the need for the Speed Healer to bring the read out to the correct value. So far (about 20K miles now) the new gear change has worked great!
carlson_mn
Well-known member
Nice mod find! and glad it has helped people enjoy their highway riding a bit more. I often searched for another gear on '04. My '08 just seems perfect. Like another guy said for me, in twisty riding, I wouldn't want 3rd gear any taller than it is because 2nd is just too high strung on the same roads.
Easy installation, but still waiting on the snow to let up. I should have an "informed" opinion after a shakedown, then the Cape Fear 1K in a couple of weeks!
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Top_Speed1
Panama Canal Crosser
I use to do this on my snowmobiles all the time and hence how I got my nick-name 30 years ago.
We did it for the frozen lakes (drags). Top-end or Top-Speed would always win as hole-shots could easily be compensated for with the distance of 2mi or sometimes more. The 5's were just lay down and keep the aerodynamics as clean as possible.
On your FJR however, I would just enjoy it as the Mfgr intended. I'm sure they did extensive T&E/R&D and found the sweet spot for each gear. I will agree that the top side as being "buzzy", but so what, I see some remedy's here to help offset that as well.
But then again?..... I like playing.... Tweak away fellers
We did it for the frozen lakes (drags). Top-end or Top-Speed would always win as hole-shots could easily be compensated for with the distance of 2mi or sometimes more. The 5's were just lay down and keep the aerodynamics as clean as possible.
On your FJR however, I would just enjoy it as the Mfgr intended. I'm sure they did extensive T&E/R&D and found the sweet spot for each gear. I will agree that the top side as being "buzzy", but so what, I see some remedy's here to help offset that as well.
But then again?..... I like playing.... Tweak away fellers
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I look forward to your assessment, Dudeckp!
Nearly 1 year later, I've got about 5400 Miles on my FD gear swap with no issues... I'm reminded of this ratio change every time I ride it. And yes, I've got a Speedo-Healer installed so my rpms reflect the change (~3000 at 60 mph). I did install new tires recently so I'm going to recheck the rolling radius of the rear tire and compare it to my original calculations which used a half-worn Mich PR2.
Regards,
Mr. BR
Nearly 1 year later, I've got about 5400 Miles on my FD gear swap with no issues... I'm reminded of this ratio change every time I ride it. And yes, I've got a Speedo-Healer installed so my rpms reflect the change (~3000 at 60 mph). I did install new tires recently so I'm going to recheck the rolling radius of the rear tire and compare it to my original calculations which used a half-worn Mich PR2.
Regards,
Mr. BR
Back to final drive mods, has anyone with Genlll done the final drive mod? When doing the install, is there any issue with using the current shaft? Are the Venture parts new or used? Will RMSportsMax provide a new or like new condition pumpkin? I now have a 190/55 PR2 rear tire and my speedo is in sync with my GPS. If I were to go with the final drive mod, will it disrupt my MPH accuracy? I'm on a 2014ES.
mcatrophy
Privileged to ride a 2018 FJR1300AS
I believe speed is taken from the rear wheel ABS sensor, not the gearbox, so speedometer calibration will not change.
OK folks I have now had an opportunity to test the results of the Royal Venture final drive conversion. Keep in mind, I am running a 190/55 rear tire. Prior to the conversion the speedo was running dead on with the GPS. At 4000rpm the speedo was at 78mph. At 4000rpm I am now at 83mph. All five gears are now a bit taller but it will be easy to get adjusted to the change. I find it a bit sluggish in 5th in touring mode but in sport mode it is very snappy. I have a 4000+ mile trip planned for May. After that I will be able to determine the full merits of the conversion. No longer feel the need for that 6the gear!!
FJRPittsburgh
Rally Addict
I'll be waiting to hear your review of the new transmission. When I first got my FJR, I felt immediately that the bike needed a 6th gear or a taller 5th gear. Over time I've decided that the bike's transmission is great the way it was designed. I figured I could get a little better gas mileage with a taller 5th gear because I'm a cheap ass. For what it would cost for time and expense experimenting with the gears, I could buy a lot of gas with that money. The 5 speed transmission in my 08 is just perfect.
I will also be waiting to hear your report on mileage since your odometer has not been affected by the change (unlike the 1st Genners who need to use a speedo healer) any difference in your mileage will be "real".
HyperPete
Opinionated curmudgeon
I thought I'd pop my head in here and add a comment. I've dealt with John Furbur (Owner of RMSportMax in Catasaqua) for several years. He's an honest, knowledgeable, and reliable guy that you can trust. He's also quite accommodating. I bought my FJR from him, and he works on my VMax.
I can't comment on the gear swap, but thought you might like some feedback on John.
Cheers!
I can't comment on the gear swap, but thought you might like some feedback on John.
Cheers!
SkooterG
Purveyor of Crooked Facts
I can't wait to hear about the first person to try this with a '16 6-speed model!
El Toro Joe
FYYFF
SkooterG
Purveyor of Crooked Facts
Zobie thread alert!
So has anybody tried the taller final drive gearing swap in a Gen 3.6 FJR yet?
So has anybody tried the taller final drive gearing swap in a Gen 3.6 FJR yet?
RossKean
Well-known member
I bet it will improve torque, acceleration, fuel mileage and top speed. Amazing that Yamaha expert engineers never thought of it!
