Hannigan conversions - BMW Luxury Touring Community
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post #1 of 7 Old May 27th, 2015, 9:18 pm Thread Starter
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Hannigan conversions

Anyone heard any negative issues with transmissions after this conversion. Thinking about it ?
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post #2 of 7 Old May 27th, 2015, 9:45 pm
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Re: Hannigan conversions

None yet, went to Colorado and back from NJ, 2 years ago, hauling an Aspen Classic camper and equipment. I think there probably would be issues by now.......

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post #3 of 7 Old May 27th, 2015, 10:41 pm
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Re: Hannigan conversions

I know of two instances of Hannigan LT Trikes with torn up transmissions. The first is the trike that I presently own. The previous owner said it was his fault as he overloaded the trike and the trailer he pulled behind the trike. The second instance was a Hannigan LT trike that Al and Jan Strickland owned. They tore the transmission up on a trip to Nova Scotia. They traded the trike in on a 1600 GTL. Al is over on the 1300 and 1600 forums if you want to contact him.

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post #4 of 7 Old May 28th, 2015, 9:16 am
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Re: Hannigan conversions

I had mine converted in 2012 and had no issues yet.

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post #5 of 7 Old May 28th, 2015, 10:32 am
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Re: Hannigan conversions

I have had two Gear boxes go on our K1200Lt Sidecar rig. I think I have figgered out why they ate the input shaft bearing. You need to drive it like a dump truck.. I give go no more the 1/3 on the gas, & try to keep the RPM around 3500 - 4000. It is a lot less strain on the gear box that way...

Patric Blackman
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post #6 of 7 Old May 28th, 2015, 11:21 am
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Re: Hannigan conversions

Quote:
Originally Posted by Patric View Post
I have had two Gear boxes go on our K1200Lt Sidecar rig. I think I have figgered out why they ate the input shaft bearing. You need to drive it like a dump truck.. I give go no more the 1/3 on the gas, & try to keep the RPM around 3500 - 4000. It is a lot less strain on the gear box that way...
Yes, RPM is the key. Remember that Power = Torque x RPM x C. I think C is something like 5225, but I don't remember exactly and it matters not for this discussion. So, if you double your RPM, you get the same power, but with half the torque from the engine and thus on the input shaft of the transmission (the input shaft bearing seems to be the main failure point).

So, don't climb long grades in 5th at 3,000 RPM and full throttle. Shift down to 3rd or 2nd and get the RPM up to 5-6,000. You will remove a lot of stress from the engine, clutch and transmission input shaft.
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post #7 of 7 Old May 28th, 2015, 12:54 pm
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Re: Hannigan conversions

I bought a 2003 that was converted in 2012 and have not had any issues. I do mostly in town with lots of stop and go riding with 2 up. I also do many military escorts with two 3 x 5 flags trying to stop me from behind. Interesting reading from others about their failures, so now I am worried about a long trip planned.
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