Big difference between 88 & 96? 5 vs. 6 speed?
Club Member
Joined: Feb 2007
Posts: 4,892
Likes: 2
From: DUNDALK,MARYLAND
Milwaukee, WI - Harley-Davidson will launch an all-new Big Twin powertrain for 2007, as the Twin Cam 96/96B engine and 6-speed Cruise Drive transmission debut together on all Touring, Softail and Dyna models. The new engine, which will only be available with Electronic Sequential Port Fuel Injection (ESPFI), offers a nine percent increase in displacement and up to a 17 percent increase in torque (varies by model) over the Twin Cam 88/88B engines it replaces, and features a number of design enhancements making it more powerful, reliable and smoother.
The Twin Cam 96 produces up to 93 ft. lbs. of peak torque at 3500 rpm, compared to the Twin Cam 88 at up to 82 ft. lbs. at 3500 rpm.
The 6-speed Cruise Drive transmission, which was introduced on the Dyna family in 2006, features gear ratios optimized to match the torque curve of the new Twin Cam 96/96B engines. The addition of a higher-ratio sixth gear reduces top-gear rpm by 11 percent, compared to the previous 5-speed Big Twin transmission. At 75 mph, engine speed is reduced by 368 rpm, from 3227 rpm to 2859 rpm. Second through fourth gears have helical-cut teeth for quieter operation, and load carrying capacity has been increased significantly.
The Twin Cam 96 produces up to 93 ft. lbs. of peak torque at 3500 rpm, compared to the Twin Cam 88 at up to 82 ft. lbs. at 3500 rpm.
The 6-speed Cruise Drive transmission, which was introduced on the Dyna family in 2006, features gear ratios optimized to match the torque curve of the new Twin Cam 96/96B engines. The addition of a higher-ratio sixth gear reduces top-gear rpm by 11 percent, compared to the previous 5-speed Big Twin transmission. At 75 mph, engine speed is reduced by 368 rpm, from 3227 rpm to 2859 rpm. Second through fourth gears have helical-cut teeth for quieter operation, and load carrying capacity has been increased significantly.
Road Master
Joined: Aug 2005
Posts: 906
Likes: 0
From: State College, PA
Had an 07 went back to an 06
The 07 has a little more power but not that much and I prefer the gear spacing on the 5 speed over the 6 speed. In fact I have had two 6 speed Harleys. If you are always on a four lane highway running over 70 mph the 6 speed would have a advantage.
If you put a 95 kit in the 88 TC it would be equal, some say faster than the 96 TC, but
of course if you ut a kit in the 96 then it would be faster. But who buys a Harley to race ??
Pre 07 Harleys are tried and true and run a WHOLE LOT COOLER which should equal loner engine life.
If you put a 95 kit in the 88 TC it would be equal, some say faster than the 96 TC, but
of course if you ut a kit in the 96 then it would be faster. But who buys a Harley to race ??
Pre 07 Harleys are tried and true and run a WHOLE LOT COOLER which should equal loner engine life.
Road Captain
Joined: Apr 2007
Posts: 505
Likes: 1
From: Pennsylvania
The 07 has a little more power but not that much and I prefer the gear spacing on the 5 speed over the 6 speed. In fact I have had two 6 speed Harleys. If you are always on a four lane highway running over 70 mph the 6 speed would have a advantage.
If you put a 95 kit in the 88 TC it would be equal, some say faster than the 96 TC, but
of course if you ut a kit in the 96 then it would be faster. But who buys a Harley to race ??
Pre 07 Harleys are tried and true and run a WHOLE LOT COOLER which should equal loner engine life.
If you put a 95 kit in the 88 TC it would be equal, some say faster than the 96 TC, but
of course if you ut a kit in the 96 then it would be faster. But who buys a Harley to race ??
Pre 07 Harleys are tried and true and run a WHOLE LOT COOLER which should equal loner engine life.
Thread Starter
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Seasoned HDF Member
Joined: Jun 2007
Posts: 5,763
Likes: 371
From: North of Hell, South of Heaven
The 07 has a little more power but not that much and I prefer the gear spacing on the 5 speed over the 6 speed. In fact I have had two 6 speed Harleys. If you are always on a four lane highway running over 70 mph the 6 speed would have a advantage.
If you put a 95 kit in the 88 TC it would be equal, some say faster than the 96 TC, but
of course if you ut a kit in the 96 then it would be faster. But who buys a Harley to race ??
Pre 07 Harleys are tried and true and run a WHOLE LOT COOLER which should equal loner engine life.
If you put a 95 kit in the 88 TC it would be equal, some say faster than the 96 TC, but
of course if you ut a kit in the 96 then it would be faster. But who buys a Harley to race ??
Pre 07 Harleys are tried and true and run a WHOLE LOT COOLER which should equal loner engine life.
Road Warrior
Joined: May 2008
Posts: 1,597
Likes: 3
From: Inland Empire, So Cal
I think you will miss the 6 speed tranny more than the cubic inches, but I would not consider either a deal breaker if you really want a bagger, and have a really good deal worked out on the 04 Road Glide.
Outstanding HDF Member
Joined: Aug 2008
Posts: 3,078
Likes: 6
From: Michigan
Like you said, just buy the second bike, if you don't like it, sell it for what you have into it. (If you get it for $10K, and clean it up, you might even make an extra happy meal or two on it)
Thread Starter
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Seasoned HDF Member
Joined: Jun 2007
Posts: 5,763
Likes: 371
From: North of Hell, South of Heaven
LOL! I did find out today that he has the detachable riders backrest and passenger backrest with detachable luggage rack. Also, slip-ons with re-map, Alarm system and a taller windshield for touring. Of the 7,600 miles on the odometer, most were obtained on a handful of long trips - no bike nights or bar hopping stuff. It mostly sits. He's located not too far from the house, so I think I will take a look at it...
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Extreme HDF Member
Joined: Aug 2007
Posts: 17,625
Likes: 1,665
From: Blairsville GA
Since I would be using this RG as a touring rig, I would be running at 70+ most of the tme, but rarely above 80. I'm just concerned that I would be straining that baby for extended touring. I think someone here alluded that the touring models are geared diffrently. If that's the case, it may very well be a non-issue.
Road Captain
Joined: Jun 2008
Posts: 543
Likes: 1
From: Lowell, NC
5 speeds just take a few minutes to get used to a 75-80 mph. It sounds rough at first. I've ran my 5 speed 3 days straight before at 75-80 mph. It loves it!
My buddy rides w/ me has an ultra w/ a 6 speed..... its sick! At 80 mph he just lugs away from me. I have to really push my bike harder than i like to keep up w/ him and usually just let him go play..... he always waits up for me.
So I think you'll prefer the 6 speed but i dont think you regret the bike.
My buddy rides w/ me has an ultra w/ a 6 speed..... its sick! At 80 mph he just lugs away from me. I have to really push my bike harder than i like to keep up w/ him and usually just let him go play..... he always waits up for me.
So I think you'll prefer the 6 speed but i dont think you regret the bike.