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| Got the Tiro (CB750 KO style) seat! |
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Posted by: Papa Weeley_imp - 05-13-2014, 04:20 AM - Forum: Accessories/Modifications
- Replies (24)
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Some of you may have seen my earlier post, asking about the Tiro vintage style seat, since the Cozy has been out of stock for some time with Mr. T.
Since no one else had one to offer up any experience or reviews, I decided to be impatient (in regard to waiting for the Cozy) AND be a guinea pig, and order the Tiro. The fact that it is advertised as the official Honda aftermarket seat carried a lot of weight for me.
As usual, delivery time from Samurider was unbelievably short; ordered last Thursday (my time), and just got it here in SoCal about an hour ago.
Initial impression is "this thing's beefy"! Much heftier looking than the stock seat - though oddly, it actually seem to weigh less. Installing was just as easy as the stock piece, too.
[url=http://s157.photobucket.com/user/mustangfeverrr/media/2014-5-13015_zpsb3cfaf0c.jpg.html]![[Image: 84bb1d452430b1d05a1277d55774a00b.jpg]](https://cb1100forum.net/forum/uploads/imp/201405/84bb1d452430b1d05a1277d55774a00b.jpg)
The seat pan is very stout, even looks like a factory piece, and in fact it's stamped "HONDA":
[url=http://s157.photobucket.com/user/mustangfeverrr/media/2014-5-13016_zps11c5f084.jpg.html]![[Image: 3f7ba1c3231b83cc620e77b21fa41889.jpg]](https://cb1100forum.net/forum/uploads/imp/201405/3f7ba1c3231b83cc620e77b21fa41889.jpg)
The foam is firm, but feels very comfortable, and seems like it'll be nice and supportive for longer rides. Sitting still, flat-footing it, you can feel the sharper corners of top surface intruding on the inside of your legs, but it's soft enough that it's not uncomfortable. When your feet return to the pegs (99% of the time you're on the bike, after all), those corners aren't noticed at all, just a wider, flattish, very comfortable seating surface. It's obviously much thicker than the stock seat, both for rider and passenger. From the specs I've read, it's only supposed to be fractions of an inch taller, but the impression with the "buttometer" is more like a full inch, at least. I'm 6', and I feel like I suddenly got quite a bit more leg room. Here's the difference:
[url=http://s157.photobucket.com/user/mustangfeverrr/media/2014-5-13020_zpse0675fdc.jpg.html]![[Image: 0df4f46a4193c84f16aaf11afc36da5a.jpg]](https://cb1100forum.net/forum/uploads/imp/201405/0df4f46a4193c84f16aaf11afc36da5a.jpg)
Bad pic of it on the bike in it's present cramped quarters, but it's the best I can offer during office hours until I'm able to pull it out of hiding. I'll try to follow-up with how it feels after I've taken it out on a ride, too.
[url=http://s157.photobucket.com/user/mustangfeverrr/media/2014-5-13022_zpse617b23a.jpg.html]![[Image: de5cc92a7515b006cf778f6eb465a100.jpg]](https://cb1100forum.net/forum/uploads/imp/201405/de5cc92a7515b006cf778f6eb465a100.jpg)
Enjoy!
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| Yoshi vs Stock |
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Posted by: CIP57_imp - 05-13-2014, 03:13 AM - Forum: Accessories/Modifications
- Replies (12)
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i have two video's of my stock exhaust and Yoshi.
Yoshi 8.0 0-100
Stock 9.1
These runs where both on a slight uphill grade in the same location. On the Yoshi run you can see the wheel up and bounce at the 30mph area, I was laughing through the whole run after that. So, that's a full second faster 0-100. Anyone interested in seeing the vids can e-mail me.
My first run with the yoshi i spun the back tire, you can see the speedo jump to 55 and back down to 50 and the bike got sideways on me. I have that one too.
Edit: I ran .3 better with a closed airbox ( the vid is with closed airbox )
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| Ideal Gearshifter Geometry |
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Posted by: Greg_imp - 05-12-2014, 12:56 PM - Forum: Mechanical & Technical
- Replies (44)
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I like to understand how everything works on my motorcycle. The control that is designed with the most adjustability is the gear shifter. Having this set up right makes riding easier and reduces a potential source of distraction. Besides, it's a cool little mechanism and easy to adjust to fit your unique situation.
A few years ago I had reconstructive surgery on my left foot. Several joints were immobilized and my range of motion is smaller than normal, so I have had to adjust the shifter to suit. I understood the idea behind displacing the shifter pivot away from the transmission spindle but until I did the following drawings I didn't really appreciate the beauty of this mechanism.
Displacing the shifter pivot allows the designers to position it in the right place without regard to where the spindle is, and also use differing arm lengths to control the amount of force needed to execute a shift.
Above is the normal geometry of the shifter. I would assume this is how it comes from the factory, but since I adjusted mine before taking a close look and measuring it, I'm not sure of that.
Above shows upshifting and downshifting behind the normal, at rest position.
When linkage length is about 3.86” (98mm) and the spindle dots are aligned, right angles are formed at both linkage connections; to the lever and to the arm.
Gear changes require a 10° rotation of the transmission spindle, which takes about 1.04” (26.5mm) of gearshift foot peg travel.
The spindle is splined with a 12° pitch which raises or lowers the gearshift foot peg about 1.25” (31.75mm) if the gearshift arm is moved one spline.
For finer adjustments than 1.25” you have to change the linkage length. Facing the bike, the left end is reverse threads. Both 10mm nuts must be loosened so the rod can be turned.
This mechanism is designed to be adjustable to suit individual preferences but it works best with ideal geometry.
I felt the need to disclaim this post. I hope it doesn't spoil it for you.
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| Avon RoadRider |
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Posted by: The Spaceman_imp - 05-12-2014, 09:52 AM - Forum: Mechanical & Technical
- Replies (9)
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Avon has an ad for their "RoadRider" bias tires in next month's Motorcyclist. They're touting them as a "performance upgrade for classic and vintage bikes.". I checked their website at http://www.avonmoto.com and they have them in our sizes. I know a couple people said they'd prefer bias ply tires. Has anyone tried these?
In the photos these appear to have the same profile and tread pattern as the Avon Venom tires I ran on my HD. Those were excellent tires in every aspect.
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