HarleyTechTalk

Quote from: Durwood on April 07, 2019, 08:58:25 AM
I had a customer with a 124" M8 build report that he busted 2nd gear and was curious if anyone here has had the same issue?

He said that he's heard of a half dozen with big engine builds that did the same thing but I haven't seen this anywhere myself.

Third is the most predominate problem However, the MoCo did upgrade when replacing. Something about the Metallurgy of the originals. I'll see if I can find it in the Service Portal.

I replaced my gearset with a brand new one and sent to Liberty's Gear and had them do their work to it. Only have a 1000 miles on it so not really a long term test, but so far so good.

Wasn't there flex found in the TC trap door on high HP/TQ builds? I think that's why Baker came out with a new door.

Maybe a similar setup would help this problem?

the M8 trans is the same as the TC only change is shift drum  2/3 common then still is . M8 makes more tq on avg then the TC did 

Fix the OEM box is less than after market and from what I have seen  first hand stronger .

R&D Motorsports out of Clearwater FL is making stock tranny's out perform Grudge Box. I talked to worker there a couple weeks ago. He told me turn around was about a week and they charge1400 to make you're stock transmission hold up to some Big Builds. He told me to drop off my transmission and I will not be disappointed. He also told me he was working on repairing 2 or 3 grudge box transmissions and that a Grudge Box sucks up about 10 HP over a stock transmission because of the mass of the unit. Hope this info helps someone. Contact Mark at R&D 727-447-4552

Contact Mike Beland at A1 Cycles in NC
561-603-6671

2019 CVO limited with 35000 miles.

Lost 6th gear due to worn shift fork. Slider ring shows more than normal heat on one side. Little more wear than normal on the dogs for the main drive gear but no broken teeth anywhere.

We suspect lack of oil due to oil transfer in the first 5000 miles. I suppose damage was done at that time until last week when 6th gear would not engage totally.

Those that had the oil transfer issues on 2017-2019,20 touring bikes may want to check it.

For the guys that have had trans problems with the HD 6 speed on the street.  Were you running a lock up?  Or the guys at the track that aren't using assisted shift.  Are you running a lock up?

Nope.  A solid hit into 3rd from a well set Bandit Sportsman.  (X2  )

Quote from: hrdtail78 on July 30, 2021, 11:47:35 AM
For the guys that have had trans problems with the HD 6 speed on the street.  Were you running a lock up?  Or the guys at the track that aren't using assisted shift.  Are you running a lock up?

Smoked the 3rd gear using SE spring and the extra plate clutch pack with my skinny 145lbs .  Bob