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MICK MACK 04-11-2019 04:48 AM

GL 1500 wheel on 1200 for CT?
ok, realizing that the 165 80 15 CT bead wont seat on MY 1200 GL. can a person put a 1500 wheel on 1200 GL (direct swap) and put the CT on the 1500 wheel and it FIT (between the swing arm)?.

175 60 16 CT on the 1500 wheel (3.5" wide. 1200 has 3" wide wheel). Right size tire that is similar in size to stock MC 1500 tire? 160 80 16 seems to be the stock MC tire size on 1500 GL, yes?

the final drives LOOK the same on both bikes, driveshaft splines, mount to swing arm LOOK the same. disc is different mounting on the wheel, but the OD of the disc is the same, yes? the calipers are the same (I know that).

CT being quite a bit cheaper than MC tires... especially for the 1500 ($200/each?). CT have HIGHER Weight rating than MC tires, nice rain grooves to channel water out from under the tread, more so that most MC tires and CT wud last a very long time. .

a 175 60 16 CT WILL FIT (without having to air the tire up to 100+ PSI to TRY to seat the bead) the 16" wheel, yes? $56 CT vs $200 MC tire might be worth the effort to swap the 15" MC wheel for the 16" 1500 wheel for the different tire, IF don't have to change out the swing arm to get the tire in there? input? thx

DaveO430 04-11-2019 06:00 AM

I think you have to also use a 1500 final drive.

MICK MACK 04-11-2019 08:01 AM

think I have to use the 1500's final drive unit... or know? anything else? that final drive looks like the 1200's final drive... but looks like the bearings might be bigger on the drive side of the unit???? I thought it had double bearings on the drive side of the unit? saw where someone machined drive side of unit to accept 2 bearings side by side as plenty of material there to machine out and the drive side bearing is taking a LOT of the load... 78%. the other disc side of bearing, coaster bearing, 22% of load???

easy enough to pop the seals out of the bearings in the final drive unit with pick thing and fill it with quality wheel bearing grease. mine seemed ok, no movement in them... except round and round, of course.

Ekvh1 04-11-2019 08:36 AM

A good how-to somewhere here. It’s fairly easy. I did it to my 1200 swingarm. I’ll dig for the post.

Andy Cote 04-11-2019 08:36 AM

Ekvh1 04-11-2019 08:40 AM

MICK MACK 04-11-2019 06:53 PM

The conversion utilizes the 1500 rear wheel, Punkin and disk, rear brake caliper (same as 1200), mounting bracket and wheel spacer (ground down on spacer between disc brake mount and swing arm). For clearance of the wider 1500 bracket, it must be ground down to fit the left rear shock bolt, which also must be ground down. Original 1200 tire is a 15 inch with the 1500 being 16 inch.. Tire must be deflated for the tight squeeze to get the wheel into place. 1500 wheel 3.5", 1200 wheel =3" ... thx for input.

MICK MACK 04-11-2019 09:54 PM

somewhere in the 1500 model year they went from 6 pin drive to a 5 pin drive on the rear wheel? yes? 6 pin drive on 88-90? and 5 pin drive from then on to 00? hummmmm???

Andy Cote 04-12-2019 08:27 AM


Originally Posted by MICK MACK (Post 5835071)
somewhere in the 1500 model year they went from 6 pin drive to a 5 pin drive on the rear wheel? yes? 6 pin drive on 88-90? and 5 pin drive from then on to 00? hummmmm???

Yes but as long as you use a matching wheel and final drive you should be fine. Details in the provided links.

DBohrer 04-14-2019 02:41 PM

Mick Mack, You do "need" to use the GL1500 final drive. In doing so it will gear your GL1200 a little higher (a good thing).

The four (4) mounting studs on the GL1500 final drive are slightly larger than the mounting holes on the GL1200 swing arm. You will need to drill the holes (on the swing arm) slightly larger.

My close riding friend did this conversion on his GL1200 a few years ago. I was just talking about this with him this morning......!!

Also what you listed in post # 7.....!!

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