[troop]

I had some of those types ( Tusk 1-1/8" bars at 15mm rise) and they didn't work. I bought a couple 3/4" steel spacers and inserts at the local hardware store. The OEM bolts are fine thread, so I had to order longer ones on ebay from China, as even Fastenal couldn't get them. I was lazy and just wrapped them with electrical tape. For a $16 project, it turned out good. Doing it this way also raises up the display. Not much cable slack for anything longer. Nice improvement. For reference, I am 6'3" with a 36" inseam.

Socket Head Cap Screws M6~M12 Fine Thread Pitch A2 Stainless Steel Screws Bolts | eBay

Find many great new & used options and get the best deals for Socket Head Cap Screws M6~M12 Fine Thread Pitch A2 Stainless Steel Screws Bolts at the best online prices at eBay! Free shipping for many products!

www.ebay.com

 

[troop]

Here's what I used:
1.) 1/2" ID
1" OD
1/2" thick machine bushing

2.) 3/8" ID
1/2" OD
1" long steel spacer (cut it in half for two pieces.

The bolt is a M10 for reference. Everything slides together snugly.

 

[troop]

3/8" ID = 9.5mm Your 10M bolts will be a bit too thick..

 

[troop]

Yeah, I'm not quite sure how I'm going to figure that one out. Might be able to thread the 12.9 steel screw right through the softer aluminum? And I'm wondering if a 3/8 spacer is exactly 3/8 inner diameter? Or if it's maybe 1/64 larger so it can actually slide over a 3/8 inch shaft part?
I'll post in here with my findings. I'm hoping other forum readers might find this information helpful.... maybe.

Did you get this sorted out? I dunno why I didn't think to look for a M10-1.50 bolt/lock nut?? I saw the OEM was 1.25 and locked into that. I ordered (2) M10-1.50 x 90mm 12.9 grade bolts for $1.36 EACH plus (2) stainless M10 - 1.50 lock nuts for .48/each from Fastenal (local). They are installed now. Only concern with black oxide is rust factor, but only about 6mm of threads are exposed at the bottom.

 

[troop]

Hi Troop;
Yeah, the reason I went with 1.25 thread pitch is it apparently grips a little better than 1.5???
My parts arrived: the 1/4" spacer with the 3/8 inner diameter fits perfectly around the 10mm bolt. But, the 1/2" spacer with the "same" 3/8 inner diameter will need to be made the tiniest bit larger to get it to fit nicely. Will get it done soon because the BC weather is good enough for riding!

With the M10-1.50 bolt being 12.9 tensile versus the OEM M10-1.25 being 8.8 tensile, I think I'll be OK. I also added split ring lock washers with the locknuts