Motor Mount Bolts

[ChrisK]

Lol, ya. This isn't the solution I'm looking for: http://nicholssportbikes.com/products/N10MMBOLTKIT_WOS.html

[Blue]

It might be a long shot, but I would contact the folks at T-Rex Racing.

I have a 2000 M900ie with 10mm motor mount bolts.  I bought a set of frame sliders from T-Rex racing for my Monster.  This came with a replacement motor mount bolt with threaded ends on both sides to mount the frame sliders on.  The bolt was longer than the one I removed.  They might sell you one without the kit.  Would this help or am I not understanding what you're after?   The frame slider kit was around $60, much cheaper than other options.  Good luck with the project!

[ChrisK]

That's a good tip, I'll contact them, thanks!

[oldndumb]

I have a set of T-Rex paddock stands and have some experience with them insofar as quality of materials go. The rear, SSSA stand bent a few degrees on first use. If I have to leave a bike on it for more than an hour, I supplement it with jack stands.

On my original order, the supplied pin was too large and was replaced by them. I was told not to return the o'size pin, so decided to turn it down for use. I noticed what I though was merely a surface flaw on it and proceeded to turn it down. As it was being turned, the flaw opened up and contained a chalky substance. Then it proceeded to get smaller as the diameter went down. It was still visible when I reached the final diameter. It was relegated to use as a pin press as I had no confidence that there was not any more occlusions/discontinuities in it.

Bottom line, my experience with T'Rex leads me to not want to do any more business with them.

Have you directly called any of the fastener suppliers (not Fastenal!) and told them what you need?

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[ChrisK]

No, I haven't called, and I probably should.

[ChrisK]

Just in case anyone cares..... 

I purchased a bolt on ebay for a 05 M620. I decided that since these bolts had nuts on the other end of them, they just HAD to be longer than the M900 OEM bolt. I turned out to be right, they're about 1/2 inch longer, which is perfect for my project. The bolt is 12mm diameter, as expected, and I will be having my buddy turn it down to 10 in his lathe.

[krista]

Why not try and adapt the bike to the bigger bolt? Pull existing bolt out, lift up the frame, see if 12mm bolt slides through engine. Resize the holes in the frame with a uni-bit to 12mm.

The thing about the cases to get that working is Ducati didn't really care how sloppy the cases were before the 12mm bolts and I've had to ream the cases for the Nichols 10mm bolts in the past. Drilling / reaming to 12mm isn't a problem unless there's a LOT of material to remove.

Don't use allthread while actually riding the bike. It will break and then it'll split the top shell of the motor mount off the engine case. A lot of STs actually break motor mount bolts (and then their cases). When I talk to customers, I tell them my opinion is Nichols bolts is the 1st thing I'd do for my own bike if/when I bought an ST.

I'd suggest (or what I'd do if I were trying this) is call up Speedymoto, tell them you'd like one of their frame slider bolts and nuts to be a rear motor mount with extra threads.

Chris

[ChrisK]

The reason I wanted to do it this way is because I'd rather mess up a $12 bolt than mess up the frame. I have a friend who was a machinist for 30 years with a lathe in his garage, living literally 4 minutes from my house. He'll make quick work of it.

[ChrisK]

Just as a reminder... please measure twice and cut once, and don't trust anyone else's measurements.

Earlier in this thread someone said they thought the threads were M10x1.25 and so I took it as fact instead of checking it for myself. That's my fault. The threads were actually M10x1.5. So I/we had to start over. Oh well, we got it done.