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Discussion Starter #1
I just got e-mail from Brock saying they are done measuring my OEM wheels.

I had already made some BST wheels fit my bike from what I had on hand.

I have the slant 5 spoke design, but they may go to a different pattern.

The Brock web site shows 17 inch wheels for a Chief, so I wonder how close they are

to the FTR fitment.

My bike with home fitted BST wheels :

481 Lbs, BST, Lithium Batt, De Cat, Lic Plate Holder.jpg
 

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Discussion Starter #3
That’s bad ass that there gona make them for the FTR. Hopefully will get the added lean angle just like you did.
They certainly would since the limited OEM lean angle of 43 deg due to the shape of the rear OEM tire.
 

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Discussion Starter #6
That said, a wider tire requires more lean at the same speed...
The contact area of the OEM tire , out to its edge ( 40 deg. ) is actually wider than that of the 180 17 Pirelli I put on my bike in the 40 deg area of its curvature.
Pirelli is 1 inch wider, overall, but it's angle drops off to 55 deg near it's edge.
That make the Pirelli lean quicker and gives me more available speed I the corners.
Will post pictures, later.
.
 

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Yeah I understand now, the oem rear is a bit of a weird tire. It's fairly square, unlike most other modern tires. So at moderate lean you're already further from the center than on a normal 160/60 or 180/55...
 

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A 5.5x17" rear and a 3.5x19" front would work for me too actually, I'm not so sure if I want a 17" front. BTW, I'm amazed how heavy the stock ones are.... (anyone needs a carefully broken-in kidney?)
 

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Discussion Starter #9
A 5.5x17" rear and a 3.5x19" front would work for me too actually, I'm not so sure if I want a 17" front. BTW, I'm amazed how heavy the stock ones are.... (anyone needs a carefully broken-in kidney?)
Rear wheel, with tire, disk and sprocket was 40 Lbs.
The front with disks was 30 Lbs.
BST rear was 28 Lbs with tire, disk and sprocket, BST front was 26 Lbs
 

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Discussion Starter #11
I assume you don’t change tires on these wheels with a spoon?
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No worse than any other tire.
Leave in the sun a bit, warm up both sides.
I use a Harbor Freight tire changer and aluminum spoons with soapy water spray lube.
I use thin cardboard or plastic between spoon and edge of rim.
 

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Yeah, I used these, not a single scratch. Oh, and some foam in my bead breaker and a rag around the "spoon" of the bead breaker.

s-l300.jpg


152511tirechangestndwbeadbreakr.jpg


And tire mounting soap.
 

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Don't touch the wheel...
Have all your tools wear gloves...
Use loads of tire soap...


...or have it done by a good mechanic (even on a tire machine you can screw up a rim)
 

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Accidents always happen. And if/when they do, on a standard wheel. Touch up paint makes it disappear.

But I’m excited to see what bst comes up with

Wonder if Carrozzeria will come up with anything.


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