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post #1 of 11 (permalink) Old 03-27-2012, 11:14 PM Thread Starter
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Talking Second!!!

So we have a new topic section here!!!

Just got Michelin Power Pures for my 750 SPR track bike. Mounted on the Marchesini ultra-light forged aluminum wheels....very light combo!!! should make the handling really crisp (I hope).

Had to go with a 120/60-17 front as there is no 120/65 (as called for on the 750 SPR). Figure I'll set the ride height and have a spin. Should turn in pretty quick I imagine, with the slightly smaller front.

Thoughts boys????

When these are toast I think I'll try the Power One Race (if I can afford them) Medium rear and medium/soft front.....

Or maybe I'll try the Bridgestone BT003R....I got a set of those for my SV650, but the new owner is going to try them out since I just mounted them and sold the bike!!!

I used to be fast....now I just dream about it.
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'08 910R (Gina), '04 F4 SPR #275 Track Bike (Lola), YSR50 (The Rabbit) restoration project, '71 CB100 "Lil' Red", '73 RD350B (Orange Bird) restoration project, '08 TT-R110 (Buster) Pam's ride, '05 TT-R230 (Dirty Girl), 2015 Indian Chietain (Rita) my "low-n-slow".
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post #2 of 11 (permalink) Old 03-28-2012, 07:05 AM
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Congratulations on the sale of the SV. Pity you had to get rid of the "factory ride". Somewhere here you can find the factory settings for the SPR. They were different from the 750s that came before it.

I have them, I'll see if I can find them.
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post #3 of 11 (permalink) Old 03-28-2012, 08:44 AM
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I probably would have opted for the 70 series over the 60. The 70 offers more sidewall which would give your wheels a bit better protection to impact damage. Geometry can be compensated for easily. The only issue would be fender clearance.
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post #4 of 11 (permalink) Old 03-28-2012, 08:48 AM Thread Starter
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I thought about sticking with the 70, but read that contact with lower radiator under heavy suspension compression could be a problem, and didn't want to raise the bike up in the front any higher.

Let's hope I stay away from any impact on the tracks....had enough of that last year!!!

I used to be fast....now I just dream about it.
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'08 910R (Gina), '04 F4 SPR #275 Track Bike (Lola), YSR50 (The Rabbit) restoration project, '71 CB100 "Lil' Red", '73 RD350B (Orange Bird) restoration project, '08 TT-R110 (Buster) Pam's ride, '05 TT-R230 (Dirty Girl), 2015 Indian Chietain (Rita) my "low-n-slow".
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post #5 of 11 (permalink) Old 03-28-2012, 10:18 AM
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I run 120/70 in front and 200/60 at the rear - Pirelli - slick's.
Pressure off the tyre warmer after one warm-up session is 27psi rear and 32psi front.
SC 1 front and SC2 rear.
Must add this, the new generation Pirelli's are way better than before.

I use the Catalyst Composites front fendor to get past tyre and tyre warmer clearence issue's.

I use AGO OEM front spring and tubes with a radial brake set-up (7.5W oil - 5mm smaller than stock air gap), or 1000R OEM front end (5W oil with 10mm smaller air gap).

Rear shock is OEM Sach's.

I avoid Bridgestone like the plague (they hurt you ED), but loved the Michelin's, just can't afford them.

Swing-arm pivot is either 4mm up or 2mm down, depending on track.

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Last edited by Donsy; 03-28-2012 at 10:39 AM.
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post #6 of 11 (permalink) Old 03-28-2012, 01:07 PM
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My tires are round and black. I had white walls on m

910R, S4RS Monster,'78 BMW R100S, Heritage Softail, Chrome V-Rod, Sportster 48, Kawasaki Concours 1400, '07 Ultra Classic with sidecar, yellow Vespa LX 150, a cool little Ruckus, and a very understanding wife........
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post #7 of 11 (permalink) Old 03-28-2012, 01:09 PM
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I just took off the white wall tires and now run black walls.

910R, S4RS Monster,'78 BMW R100S, Heritage Softail, Chrome V-Rod, Sportster 48, Kawasaki Concours 1400, '07 Ultra Classic with sidecar, yellow Vespa LX 150, a cool little Ruckus, and a very understanding wife........
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post #8 of 11 (permalink) Old 03-28-2012, 01:43 PM
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What, the white one's weren't good enough for ya? Racist!
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post #9 of 11 (permalink) Old 03-31-2012, 05:37 PM
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I remember a few years ago trying to fit a 120/70 front on a 750 F4. The 70 section tire interfered and rubbed on the leading edge of the bodywork when the front wheel was turned and the forks just slightly compressed. So we had to get a 65 section tire. I don't remember what brand and model tire it was. It may have been a Dunlop which are notoriously tall. We never had a interference problem with any 120/70 tires on the 1000 F4. Something must be slightly different between the 1000 and the 750 - and i don't think the 750 was lowered or anything like that.

Quote:
Originally Posted by esq'z me View Post
I thought about sticking with the 70, but read that contact with lower radiator under heavy suspension compression could be a problem, and didn't want to raise the bike up in the front any higher.

Let's hope I stay away from any impact on the tracks....had enough of that last year!!!
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post #10 of 11 (permalink) Old 03-31-2012, 06:51 PM
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Quote:
Originally Posted by crash2much View Post
I remember a few years ago trying to fit a 120/70 front on a 750 F4. The 70 section tire interfered and rubbed on the leading edge of the bodywork when the front wheel was turned and the forks just slightly compressed. So we had to get a 65 section tire. I don't remember what brand and model tire it was. It may have been a Dunlop which are notoriously tall. We never had a interference problem with any 120/70 tires on the 1000 F4. Something must be slightly different between the 1000 and the 750 - and i don't think the 750 was lowered or anything like that.
The steering bearing carrier has a steeper angle on the 750, compared to the 1000cc bikes, thus bringing the front wheel much closer to the bike.

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Own - Two F4 1000R's 06 and 07.
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