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 What would cause this issue with shifting on a '21 RT?
Hi all, a friends RT shifts down at speed, but not with the paddles. The oil has been changed and the bike runs fine. Any advice on what's the possible cause? Thank you.
Last edited by Peter Aawen; 03-02-2024 at 08:36 PM.
Reason: Expanded title to briefly ask the question... ;-)
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Ozzie Ozzie Ozzie
About that time/vintage, there were a number of Spyders that had a problem with the Left-Hand Control Module causing problems like this... You might want to do a bit of searching and reading to see if this one fits?! 
2013 RT Ltd Pearl White
Ryde More, Worry Less!
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Very Active Member
 Originally Posted by Mosess01
Hi all, a friends RT shifts down at speed, but not with the paddles. The oil has been changed and the bike runs fine. Any advice on what's the possible cause? Thank you.
My 14 RT has done that since 2014 when I bought it.... The SE trans ( ie. paddle shifter ) is designed to Downshift if / when the RPM's drop below a designed in amount ...... Mike
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Very Active Member
Originally Posted by Mosess01
Hi all, a friends RT shifts down at speed, but not with the paddles. The oil has been changed and the bike runs fine. Any advice on what's the possible cause? Thank you.
So you are saying the machine will auto downshift as is slows, however the paddle downshift does NOT work when is used to manually slow the machine or descending a grade?
2018 RT Ltd - Asphalt Metallic - East Valley of Phoenix
2018 RT Ltd Chrome - Champagne Metallic - Lake Stevens, Wa
(Champagne/Hooker) Magic Mirrors, 360 LED head lights, BajaRon sway bar, H&R springs and shock adjusters, dash cam, foam grips, third brake light 4 LED strobe for 7 seconds and then on steady, rear LED turn signals/8 ohm 50W resistors, sequential turn signals on front fenders, Vredestein and PPA Orb wheels on front and General out back, and driver backrest.
Things that move between machines: Ikea sheep skins, Zumo XT GPS, and extra tools. Hooker is going to be my summer trike up North; and Hookie my winter trike down South.
(Asphalt/Hookie) Elka shocks on front - BajaRon sway bar, OEM driver's backrest, LED headlights, dual USB with voltmeter, dash cam, foam grips - Magic Mirrors - front tires Vredestein Quatrac SL on PPA ORB Chrome wheels.
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The machine will downshift as it slows, but it SHOULD also downshift with the paddle. As Peter said there were some with left hand control module issues.
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Very Active Member
One way to know if it is an issue with the paddle, do you have a problem shifting to Reverse?
If no problem shifting to reverse, you may be trying to downshift at too high an RPM.
Last edited by ottawa-rider; 03-03-2024 at 09:30 AM.
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Active Member
A different take on the question....
Mosess stated "Hi all, a friends RT shifts down at speed, but not with the paddles. The oil has been changed and the bike runs fine. Any advice on what's the possible cause? Thank you. "
I think he meant that it down shifts at a while traveling at a normal speed, where his friend did not slow down and it shifts down by itself. Just my take on the post.
Last edited by Peter Aawen; 03-03-2024 at 05:45 PM.
Reason: Moved Post title - they mess with Searching! ;-)
Dean Secord AKA seaweed
Veteran: U.S. Air Force
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It will not back shift manually if the rpm's are to high!!!
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Very Active Member
Originally Posted by seaweed
Mosess stated "Hi all, a friends RT shifts down at speed, but not with the paddles. The oil has been changed and the bike runs fine. Any advice on what's the possible cause? Thank you. "
I think he meant that it down shifts at a while traveling at a normal speed, where his friend did not slow down and it shifts down by itself. Just my take on the post.
I hope he comes back and clarifies, as I could not figure out what he was saying!
2018 RT Ltd - Asphalt Metallic - East Valley of Phoenix
2018 RT Ltd Chrome - Champagne Metallic - Lake Stevens, Wa
(Champagne/Hooker) Magic Mirrors, 360 LED head lights, BajaRon sway bar, H&R springs and shock adjusters, dash cam, foam grips, third brake light 4 LED strobe for 7 seconds and then on steady, rear LED turn signals/8 ohm 50W resistors, sequential turn signals on front fenders, Vredestein and PPA Orb wheels on front and General out back, and driver backrest.
Things that move between machines: Ikea sheep skins, Zumo XT GPS, and extra tools. Hooker is going to be my summer trike up North; and Hookie my winter trike down South.
(Asphalt/Hookie) Elka shocks on front - BajaRon sway bar, OEM driver's backrest, LED headlights, dual USB with voltmeter, dash cam, foam grips - Magic Mirrors - front tires Vredestein Quatrac SL on PPA ORB Chrome wheels.
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yes this is what's happening. and the bike is a 21 RT...with 16k
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Very Active Member
Originally Posted by Mosess01
yes this is what's happening. and the bike is a 21 RT...with 16k
i'm more lost than ever now. Who were you replying too?
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Very Active Member
Originally Posted by seaweed
A different take on the question....
Mosess stated "Hi all, a friends RT shifts down at speed, but not with the paddles. The oil has been changed and the bike runs fine. Any advice on what's the possible cause? Thank you. "
I think he meant that it down shifts at a while traveling at a normal speed, where his friend did not slow down and it shifts down by itself. Just my take on the post.
IMHO Mosess Needs to ride that bike to accurately report what the issue is. It's hard enough diagnosing a problem when the actual Operator is telling us, trying to do it Third party ..... well you get my point .....Mike 
Last edited by BLUEKNIGHT911; 03-05-2024 at 11:52 PM.
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seaweed you are correct the bike shifts down as it should when slowing down. when trying to shift down with the paddles , It does not work. the oil is new the filters have been replaced.
I know what you mean this is the info I received . the bike is being brought up to Artic adventures today.
Last edited by Peter Aawen; 03-09-2024 at 08:46 AM.
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Ozzie Ozzie Ozzie
Last edited by Peter Aawen; 03-09-2024 at 08:58 AM.
2013 RT Ltd Pearl White
Ryde More, Worry Less!
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Well I'll be...
Originally Posted by Peter Aawen
It would help everyone A LOT Mosess if you would use ' Reply with Quote' from the bottom right of the particular post you are replying to; or at the very least, identify each poster you are addressing by including their username in the text of your reply, as you've done with Seaweed above and I've done in this post to you ... 
When you don't do either, it becomes very confusing for readers, like listening to just one side of a telephone conversation - and that doesn't help you and it frustrates the heck out of everyone else! 
So please, have the courtesy to make that little effort to help others help you.
I mean... Well I'll be... 
Sorry. Couldn't resist.
2021 RT Base - Petrol Blue
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SpyderLovers Ambassador
Originally Posted by Mosess01
seaweed you are correct the bike shifts down as it should when slowing down. when trying to shift down with the paddles , It does not work. the oil is new the filters have been replaced.
I know what you mean this is the info I received . the bike is being brought up to Artic adventures today.
This post is a little confusing. But hopefully it will work out.
Let us know what is the fix when you get the answers.
Thank You and have a Blessed Day. ....
ENJOY YOUR LIFE WITH A SPYDER
Ryde with a Friend and be Safe
My Spyder ..... 'Little Blue-Boy'
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It almost seems to be low on oil. The Hydraulic Control Module in pretty sensitive to oil level..
2012 Viper Red RT-S (Sold)
2020 Ryker Rally
2023 Plasma Red F3 Limited
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