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  1. #1
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    Default Shift rpms and Fuel Economy...

    Well this is very interesting...
    I have finally bit the bullet and moved my shift-points out of the basement. Largely due to the recent discussions regarding potential clutch damage for not allowing it to get locked-up fully...
    I've been shifting at 4000rpm and downshifting when rpms levels drop to about 3200...
    ...And I'm STILL getting almost 34pmg!
    I have seen the light...
    2010 RT A&C, RT-L, RT-L , Orbital Blue, Cognac, Jet Black

  2. #2
    Doru the Destroyer-Spyder Photo Investigator docdoru's Avatar
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    Quote Originally Posted by Bob Denman View Post
    Well this is very interesting...
    I have finally bit the bullet and moved my shift-points out of the basement. Largely due to the recent discussions regarding potential clutch damage for not allowing it to get locked-up fully...
    I've been shifting at 4000rpm and downshifting when rpms levels drop to about 3200...
    ...And I'm STILL getting almost 34pmg!
    I have seen the light...
    Move up another 1K (5K upshifting and 4K downshifting).
    2013 "Silver Dream" GG Taurus
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    Very Active Member bullant12's Avatar
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    Quote Originally Posted by docdoru View Post
    Move up another 1K (5K upshifting and 4K downshifting).

    With my SM-5 I'm getting 30 MPG's with the trailer (I shift at 5500 RPM's with it)... around 32 without.
    May all your encounters with the law begin with the words: "nice trike!".[/B]
    2015 Can-Am Spyder F3-S SM-6 Can-am Red/Black SM-6 with 2010 Black RT-622 trailer (hitch in the works).

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    Doc,
    I'm sitting on an RT; the powerband is about 1000 rpm lower than the GS/RS...
    2010 RT A&C, RT-L, RT-L , Orbital Blue, Cognac, Jet Black

  5. #5
    Very Active Member ulflyer's Avatar
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    Like you Bob, I'm making sure I'm over 4K before shifting up, but with the SE it wont let me downshift as soon as I'd like, or feel like it should, mostly wanting to get out of 5th to 4th.
    Maybe I'm missing some technique on how to do it, but I hit the paddle to downshift and it simply won't till it gets down to the computer designated point.

  6. #6
    Very Active Member eddieshep999's Avatar
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    I have a Spyder RT-S SE5 2010 Model

    Ref Revs and when to shift up

    Is the recommendation to shift up in all gears over 4,000 rpm's e.g. 1st Gear reach 4,000 rpm -Change up to 2nd
    2nd Gear reach 4,000 rpm -Change up to 3rd etc

    At present when town riding at 30mph I tend to have the revs just over 3,000 - in 3rd gear I don't change up to 4th gear until I Need to go
    over 40mph, 5th gear is usually selected if on the Highwayand I need to go over 50+mph

    Is this ok or do I need adjust my Revs V Gear change style to ensure I get the best out of my Rotax engine


    Thanks

    Eddie Sheppard
    Reading UK

  7. #7
    Very Active Member ARtraveler's Avatar
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    Welcome aboard Bob. It really does work.

    I usually drive around town in no higher gear than 3rd.

    Up to 50-55 no higher gear than 4th.

    60 or higher--5th gear.

    These points keep the revs up and you machine is ready for power if you need it.
    Last edited by ARtraveler; 06-11-2012 at 03:02 PM.

    Currently Owned: 2019 F3 Limited, 2020 F3 Limited: SOLD BOTH LIMITEDS in October of 2023.

    Previously : 2008 GS-SM5 (silver), 2009 RS-SE5 (red), 2010 RT-S Premier Editon #474 (black) 2011 RT A&C SE5 (magnesium) 2014 RTS-SE6 (yellow)

    MY FINAL TALLY: 7 Spyders, 15 years, 205,500 miles

    IT HAS BEEN A LONG, WONDERFUL, AND FUN RIDE.
    2020 F3L , Magma Red

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    Very Active Member retread's Avatar
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    Normally, I don't pay much attention to gas mileage, my '08 GS gets 30 to 33 mpg no matter how I twist its tail. However, there was one ride through the back roads of southern Indiana where I never got above 4th gear, and that rarely, or 45 mph, again rarely, and got over 38 mpg!

    john

  9. #9
    Registered Users Sny's Avatar
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    The PEAK is 1000rpms lower. The peak is also nowhere near 4-5k rpms.

    11_canam_spyder.jpgron wood spyder dyno.jpg
    Most people ignore everything below 4k rpms when they dyno, it's just not meant to be run at those rpms

    At 5500 rpm the RS and RT are both right at 70HP. Before that they drop off rapidly.
    Last edited by Sny; 06-11-2012 at 05:53 PM.
    tHe SmOkEr YoU dRiNk ThE pLaYeR yOu GeT!

  10. #10
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    Quote Originally Posted by eddieshep999 View Post
    Is the recommendation to shift up in all gears over 4,000 rpm's e.g. 1st Gear reach 4,000 rpm -Change up to 2nd
    2nd Gear reach 4,000 rpm -Change up to 3rd etc
    At present when town riding at 30mph I tend to have the revs just over 3,000 - in 3rd gear I don't change up to 4th gear until I Need to go
    over 40mph, 5th gear is usually selected if on the Highwayand I need to go over 50+mph
    Is this ok or do I need adjust my Revs V Gear change style...
    Eddie,
    It sounds exactly like what I'm doing!
    2010 RT A&C, RT-L, RT-L , Orbital Blue, Cognac, Jet Black

  11. #11
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    Default shifting points

    My husband and I have had a major fight over this shifting points. I tried to tell him about not shifting into 4th and 5th gear. He gets mad if I don't shift up. Thanks for making me feel better. When he is not on the bike I will ride with the lower gears. When he is on.. he can shift how he wants too. Most of the time he will be on his Goldwing and not on my RedBird.
    Quote Originally Posted by akspyderman View Post
    Welcome aboard Bob. It really does work.

    I usually drive around town in no higher gear than 3rd.

    Up to 50-55 no higher gear than 4th.

    60 or higher--5th gear.

    These points keep the revs up and you machine is ready for power if you need it.

  12. #12
    Very Active Member Chupaca's Avatar
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    Default Well..!!

    Quote Originally Posted by Bob Denman View Post
    Well this is very interesting...
    I have finally bit the bullet and moved my shift-points out of the basement. Largely due to the recent discussions regarding potential clutch damage for not allowing it to get locked-up fully...
    I've been shifting at 4000rpm and downshifting when rpms levels drop to about 3200...
    ...And I'm STILL getting almost 34pmg!
    I have seen the light...
    Now that you have seen the light, don't go towards it..!!
    Gene and Ilana De Laney
    Mt. Helix, California

    ​2012 RS sm5
    2012 RS sm5 , 998cc V-Twin 106hp DIY brake and park brake Classic Black

  13. #13
    Very Active Member ARtraveler's Avatar
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    The portions about Bob are from June 2012. We found another older post.

    Currently Owned: 2019 F3 Limited, 2020 F3 Limited: SOLD BOTH LIMITEDS in October of 2023.

    Previously : 2008 GS-SM5 (silver), 2009 RS-SE5 (red), 2010 RT-S Premier Editon #474 (black) 2011 RT A&C SE5 (magnesium) 2014 RTS-SE6 (yellow)

    MY FINAL TALLY: 7 Spyders, 15 years, 205,500 miles

    IT HAS BEEN A LONG, WONDERFUL, AND FUN RIDE.
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    Very Active Member ulflyer's Avatar
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    Quote Originally Posted by RedBird View Post
    My husband and I have had a major fight over this shifting points. I tried to tell him about not shifting into 4th and 5th gear. He gets mad if I don't shift up. Thanks for making me feel better. When he is not on the bike I will ride with the lower gears. When he is on.. he can shift how he wants too. Most of the time he will be on his Goldwing and not on my RedBird.
    Redbird, tell hubby to tend to his GW and from now on he's confined to the rear seat of Redbird, unless he wants to shuck out $1000 for a new clutch! His GW has enough torque to pull an 18 wheeler and is twice the size of our Can Am motors which are made to run higher RPM's.
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  15. #15
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    In town traffic on my RT I spend most of my time in first and second gear running around 5,500 rpm. On back roads third gear and sometimes fourth at 5,500-6,500 and only get to top gear (5) on the interstate and do around 6,000 to 7,000 rpm.

  16. #16
    Very Active Member Sarge707's Avatar
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    I Rarely shift the RT below 5,500 to 7,000 and stay in 3rd gear till at least 50 MPH. I didn,t buy it to worry if I,m getting 2-3 extra miles a gallon. My 255 HP Sea Doo only gets 5-6 MPG.

    2015 F3 sm6, Custom Dynamics fender lights.

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  17. #17
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    Quote Originally Posted by docdoru View Post
    Move up another 1K (5K upshifting and 4K downshifting).
    That is what I do.

  18. #18
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    Shifting up at 5000 revs of higher makes for a smooth quick shift. Shifting up at lower rpms can make a harsher shift.

  19. #19
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    Quote Originally Posted by can-am sam View Post
    Shifting up at 5000 revs of higher makes for a smooth quick shift. Shifting up at lower rpms can make a harsher shift.
    I used to upshift about 3500, but have learned to wait till over 4000 and usually over 4500. I'm going to try try this and see if I get any improvement in mileage, which has never broken 30 mpg.

    I let the Spyder decide on the down-shifting, unless I'm in a hilly or twisty area and think I'll need the power before the bike knows about it.
    PrairieSpyder (Patti)

  20. #20
    Very Active Member ARtraveler's Avatar
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    Quote Originally Posted by PrairieSpyder View Post
    I used to upshift about 3500, but have learned to wait till over 4000 and usually over 4500. I'm going to try try this and see if I get any improvement in mileage, which has never broken 30 mpg.

    I let the Spyder decide on the down-shifting, unless I'm in a hilly or twisty area and think I'll need the power before the bike knows about it.
    I have been refining this for myself over the last few months. I now upshift at about 5500 rpm's and downshift at about 3500 rpm's. I like to do the downshifts manually about 95% of the time. In my particular case--this seems to work well for me and for my . This gives smooth, seamless shifts between gears.

    Akspyderlady does not manually downshift on her and is happy with how that operates.

    Currently Owned: 2019 F3 Limited, 2020 F3 Limited: SOLD BOTH LIMITEDS in October of 2023.

    Previously : 2008 GS-SM5 (silver), 2009 RS-SE5 (red), 2010 RT-S Premier Editon #474 (black) 2011 RT A&C SE5 (magnesium) 2014 RTS-SE6 (yellow)

    MY FINAL TALLY: 7 Spyders, 15 years, 205,500 miles

    IT HAS BEEN A LONG, WONDERFUL, AND FUN RIDE.
    2020 F3L , Magma Red

  21. #21
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    I find that fuel economy is not where you shift, but whether or not you are running in the engine's sweet spot. Think about it, a shift happens in a split second and occurs once every few minutes. Whereas you are cruising along the rest of the time; on the open highway you might not shift out of a gear for miles and miles. The Spyder's sweet spot seems to be in the region of 4000 and 6000 rpms; when it feels neither lugging or being revved too high. So yeah, maybe shifting has an indirect affect on MPG, it's really how often you stay in the motor's sweet spot that contributes to fuel mileage.

    FWIW I was getting 150mi easily with one bar left on a recent trip.
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  22. #22
    Very Active Member MidLifeCrisis's Avatar
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    Quote Originally Posted by Bob Denman View Post
    Well this is very interesting...
    I have finally bit the bullet and moved my shift-points out of the basement. Largely due to the recent discussions regarding potential clutch damage for not allowing it to get locked-up fully...
    I've been shifting at 4000rpm and downshifting when rpms levels drop to about 3200...
    ...And I'm STILL getting almost 34pmg!
    I have seen the light...
    Huston, we have a convert.


    Sent from my iPad using Tapatalk HD

  23. #23
    Very Active Member finless's Avatar
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    I know this is a SE convo but on my SM, I find it shifts smoother between 5500 and 6500. Maybe it's just me and how I shift but closer to 6000 and it seems to just slip into gear. I have actually shifted a few times without even using the clutch.

    Bob
    2011 RT-S SM5 , Baja Ron Black

  24. #24
    Very Active Member MidLifeCrisis's Avatar
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    Quote Originally Posted by finless View Post
    I know this is a SE convo but on my SM, I find it shifts smoother between 5500 and 6500. Maybe it's just me and how I shift but closer to 6000 and it seems to just slip into gear. I have actually shifted a few times without even using the clutch.

    Bob
    That's been my observation with the SM as well. I sounds almost abusive on paper, but things just seem to work better in that range.


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  25. #25
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    My foot is still working well.. MPG is normal... 25-26 MPG expressway limits

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