| Author | Message | ||
     Oldmanriver |
This week I pulled the rims and mounted new rubber. I have access to a tire changer at work but it won't hold the rear tire with the sprocket facing down/ not enough clearance underneath. So for this time I took the rear tire to a dealer. But next time I would much rather do it my self. This would mean pulling the sprocket and replacing the bolts and washers. Does anyone have a spec on these fasteners or a source to purchase them other than through my dealer for $30? Also when I reinstalled the rear back on the bike, I was shocked at the lack of clearance between the sprocket and the lower portion of the swing arm. Most spark plugs have more gap!!! Just wondering if anybody else noticed this? Scott | ||
| D_adams |
http://www.nomartirechanger.com/ has no clearance issues for mine on a 1125 R. I got the classic model with the trailer hitch option. I like being mobile when I need to. http://www.nomartirechanger.com/products/1 (Message edited by d_adams on November 27, 2009) | ||
| Vosnick52 |
I can't believe you would have to replace the bolts every time you take a sprocket or rotor off. U know how many times I replaced sprockets on my race bikes using the same hardware. Just seems like they want to make money. | ||
| Froggy |
The bolts stretch when they are torqued down. Do people reuse them? Yep. Should they? Nope. | ||
| Oldmanriver |
I know most people would just reuse them and probably have no issue, but.... I know my luck, or lack there of. And considering where they are and the stress they are under I'd rather not take that chance. D_adams, I'd love a tire changer like that at home, but its a ways down on my list at this point. I can buy alot of bolts or pay for mounting for a while with that money. | ||
| Kevin_stevens |
What stress are they under? A few hundred pounds in shear, shared among five or six bolts. Never understood why sprocket bolts are treated so conservatively. On my 1994 Z28, it had those five big lug nuts holding the wheel to the hub. You know what holds the hub onto the rest of the CAR?! All the steering and lateral force?? Four little 8 or 10mm bolts. *Those* got replaced regularly. KeS | ||
| Ccryder |
No-mar is the way I went too. Not just the $ but also the time. Go ahead and 2nd guess the engineers, if you want but they have to cta and will always be on the conservative side (I would, I have) . Think about it, carefully. | ||
| D_adams |
2 tire changes and it's essentially paid for. Cost of tire (rear @ $140, front $100) vs dealer cost of tire, mount and balance at $260 + labor for rear, $200 + labor for front. G0150.1AMB Diablo Corsa III 120/70ZR17 Blackwall - Front $202.95 G0350.1AMB Diablo Corsa III 180/55ZR17 Blackwall - Rear $259.95 You know the dealer will charge you pretty close to that price. $460 + tax and the labor. Tire machine is $500 for the base/classic model. Tires can be had for $240 shipped (BT-016 Bridgestones) to your door. 2 sets of tires later, you're paid for, plus you know how to do tire changes and can now impress your buddies with your skillz. Of course, this isn't for everyone, I just prefer to work on my own schtuff. | ||
| Rockstarblast1 |
do they havea no mar that works for car tires and bike tires? and what about how to balance them? | ||
| Jdugger |
Buy the no-mar kit. Mine was 600 or 700 delivered, including balancer, extra tools/tips, lubes, etc. The static balancer is really good. Both the changer and balancer take some practice to learn well, but then it's a pretty efficient process. Oh, and only try and mount Michelin and Pirelli tires with it. You will bust a shoulder trying to pry a bridgestone on. Holy hell those tires are stiff. | ||
| D_adams |
I picked mine up locally, but they do go to races a lot and usually have a few spares to sell. Yeah, they work on just about anything, from maybe a 8" rim all the way out to 22 or 24" Just different adapters. They offer a static balancer, but if you don't trust that, you could always buy a computer one for about $1000 or so. I made mine and it works the same. I had some scrap aluminum, a chunk of tool steel rod and some bearings. Nothing to it.  | ||
| Oldmanriver |
D, I bought my corsa III's online for $315 delivered, front and back. I was able to mount and balance the front no problem on my own, the only issue is the rear with our machine. So if I have to spend $30 to have someone else mount the rear or for the bolts at each tire change, it would take a while to justify buying a tire changer for home. At $500/ $30= sixteen plus tire changes. If I could find the bolts even cheaper I wouldn't even consider a tire changer for home. As far as the bolts, yea it would probably be fine at least for a change or two, but every time you torque them you stretch them, loosing sheer strength. This is your connection to the rear wheel. I bet it would be pretty exciting to loose the sprocket at high speed and acceleration. Maybe I'm overly concerned but I don't want to have to think about it. So has anyone else noticed and been surprised as to how close the sprocket is to the lower portion of the swing arm? I haven't had any issues with it but it just surprised me there wasn't more clearance. Anyways goin to break in the new tires!!  |
