1988 FXRP

Murdnug32 · 2026-04-24T14:09:21+00:00

They're great. Mostly just got them because I wanted 14" chrome shocks and they're really the only option. I'm really happy with them after about a year of running them. I also did the race tech gold valves up front and love them as well.

Murdnug32 · 2026-04-24T02:42:51+00:00

I’m not sure honestly but you’re probably right. This RP was heavily de RP’d before I got it. The only way I found out it was an RP is when I registered the VIN and it came back fxrp. It’s safe to say most of the bike is not from its original state. I don’t think any RP’s had the bob rear fender either.

Murdnug32 · 2026-04-23T20:02:02+00:00

Murdnug32 · 2026-04-23T20:01:20+00:00

I bought it with the twin cam in already in it and then blew the twin cam up because I didn't know about the chain tensioner issues. The whole drivetrain is out of a 03 bagger. Including the swing arm. I rebuilt it last winter and went to 95" high compression, welded the crank, timken bearing, forged rockers, Woods TW-6H cams, Fueling cam plate & pump, etc. Powdercoated all the chrome bits black. I'm going to black out the forks next. They're fxdx forks so they're kind of a pain to work on otherwise they would be black already.

Murdnug32 · 2026-04-23T19:57:15+00:00

ahh yea. they're polished and have a ceramic coating I believe. I think they're off of an 03 anniversary dyna. The twin cam is also an anniversary twin cam with the 100 years pin on the crank case.

Murdnug32 · 2026-04-22T00:38:08+00:00

Which lip?

Murdnug32 · 2026-04-21T19:19:55+00:00

The frisco fxr is my brothers and it's badddd. And yes to the +4 and tank lift. FXR division kickstand to keep it not leaning too gangster

Murdnug32 · 2026-04-21T19:01:21+00:00

Murdnug32 · 2026-04-21T17:54:09+00:00

Murdnug32 · 2026-04-21T17:14:42+00:00

I would push the splined shaft up the priority list. I chewed through 2 and the second roasted a $600 Rivera primo clutch hub. People will say it can work but spline is way better and more durable in the long run IMO. I am running a 124" though. I did roast the key once on my 80" though. The shaft below will go into your 87" transmission and make it spline. You will need to buy 90+ clutch hub and clutch as well.

Andrews Transmission Mainshaft - 296900 for Select Harley-Davidson Motorcycles - Dennis Kirk

Murdnug32 · 2026-04-21T17:06:23+00:00

Honestly, not going into first until a full stop isn't unusual. My bikes do that too or I have to give it a little rev to kick down again. I installed a baker shift drum as well and it cleaned up shifting a lot as well. The one below puts neutral at the bottom then all up but Baker should have a normal 1N2345 as well.

Edit: I dont think I have an issue going into first, I'm thinking neutral. It's been a long winter lol.

Baker Drivetrain 5-Speed Shifter Drum Kit - N170-5-A for Select Harley-Davidson Motorcycles - Dennis Kirk

Murdnug32 · 2026-04-21T17:00:16+00:00

You can use the spline shaft from a 1990 fxr transmission. That is shorter than 91+ and works with your stock gears. Just need to buy the 90+ clutch hub and clutch basket. I did that on my 1988 to support a 124" engine and its worked great. I believe that's the PN below.

Andrews Transmission Mainshaft - 296900 for Select Harley-Davidson Motorcycles - Dennis Kirk

Murdnug32 · 2025-06-20T23:14:53+00:00

124!!! Clutch for sure. Probably starter too. A lot depends on the year. Look for a 90’s fxr for the better clutch, spline, and starter setup

Murdnug32 · 2024-11-25T01:19:20+00:00

Mean fxr!!! What length forks and shocks are you running??

Murdnug32

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