How To Change Rear End Gears On A Harley Trike

03-31-2020,10:29 PM

Anybody ever thought of or inverse the rear end gear ratio to bring the RPM's downwards??

2016 GL1800 with Roadsmith HTS1800

04-01-2020,12:49 PM

Quote Originally Posted by JimLindenberg View Post

Anybody ever thought of or inverse the rear end gear ratio to bring the RPM'south downwards??

2016 GL1800 with Roadsmith HTS1800

Roadsmith currently uses a two.61:ane (I believe) ratio for the GL1800. Yous probably have the 2.93:ane that was previously used prior to the 2019 models. You will then need a 'speedo healer'.

04-01-2020,05:34 PM

Quote Originally Posted by Lee H. Mann View Post

Roadsmith currently uses a 2.61:1 (I believe) ratio for the GL1800. You probably have the ii.93:1 that was previously used prior to the 2019 models. You will and then need a 'speedo healer'.

At around 65 mph I'm at 3,000 RPM. What is your RPM with the 2.61:1?

04-02-2020,07:23 AM

Quote Originally Posted past JimLindenberg View Post

At around 65 mph I'yard at three,000 RPM. What is your RPM with the 2.61:1?

I don't have a Roadsmith but the modify is around x%. 71mph is the new 65mph @ ten%.

04-03-2020,06:12 PM

Quote Originally Posted past Lee H. Isle of mann View Post

I don't have a Roadsmith but the modify is around 10%. 71mph is the new 65mph @ x%.

Thanks for the info

10-24-2020,06:52 AM

Just yesterday (10/23/20) I rode with another Goldwing (stock two wheel'rrr) and I take the R/smith trike (Goldwing) at the gas station, we both filed upwards at the same time and each of us zilch'd out our odomitors........... afterwards in the ride we would check our O/D's to meet the divergence................His was always ane.5 miles more than mine, is the difference's considering of mine is a trike??

Ronnie

10-24-2020,09:55 AM

Quote Originally Posted by trikeman View Post

Yes. You tin await a decrease in MPG when triking a motorcycle. Most trike conversion companies accept researched the gear ratios and have matched the gear ratio that gives all-time performance and fuel mileage to each model and brand.

I think Ronnie was talking Indicated miles traveled on the odometer... And not Miles Per Gallon...

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10-24-2020,09:38 PM

Odometers and speedometers are notorious for being inaccurate in Goldwings. I have ridden with many different trike brands every bit well as 2 wheel Goldwings for several years. Very few will ever agree on distance traveled much less MPG fifty-fifty though we all fuel up the same place and ride together. At 1 time I installed a Valkyrie rear tire on my 2 wheel GL1800 and, because of the larger tire aspect, my speedometer was near dead on. But handling suffered a bit. I eventually went back to OEM spec. tires and added a Speedo-Healer to that bike. If retentiveness is right, I believe there was a 6.five% correction required to make the speedometer accurate. But, I did notice that my odometer was and then logging slightly fewer miles than I was really traveling.

I know my CSC trike also has nearly a half dozen% speed error. I will look into the possibility of installing the adjacent larger size tire attribute when the tires demand replacing. Currently my speedo indicates I am doing 67 MPH at 2800 RPM only my bodily speed is closer to 64. I think the GL1800 has enough torque to deport the same speeds at 200-300 less RPMs. Hope this helps..... Jim

Additional Info.....

My trike has a 3.0-1 rear cease

The spec calls for 205/70R14 tires having a diameter of 25.three inches rotating 798 times per mile.

I have installed 205/50R17 tires having a diameter of 25.one inches rotating 805 times per mile

If I alter to 205/55R17 tires the diameter is 25.9 inches and will rotate 780 times per mile

And if I can fit 205/60R17s I call back that is what I would practise. Changing tire attribute is a lot easier and less expensive than changing gearing. Something to consider..... Jim