Re: SunRisers review (long)

On Mar 8, 2006, at 11:55 AM, Jim Stewart wrote:

> Robert Meador wrote:
> (snip)
>> I also feel confident in the strength of the clamped AND epoxied
>> lower joints. Without the epoxy they'd be a wreck waiting to happen
>> (imagine braking hard and having your whole right handlebar rotate
>> forward and down!) I expect in a crash the epoxy could break loose,
>> but by that time you'd have more pressing issues to deal with.
>>
>
> It'd make me very nervous, Bob.  Most epoxy isn't at its strongest
> in shear,
> which is the application here.
>
> Sure, in a crash you'd have higher-priority problems - but what
> about very heavy
> emergency braking, with your full body weight on the bars?
>
> If I had those risers I'd definitely drill and pin the bottom
> connection -
> probably I'd drill and tap into the bar stub for a screw, but
> drilling through
> and using a screw and nut would be just as good.  It wouldn't take
> long and
> would eliminate a potentially disastrous failure...

Hi Jim,

Here's some of the manufacturer's test info. He seems to think the
epoxy does a pretty good job.

http://www.cliponrisers.com/NEWS.htm#Loctite

However, I like your screw idea. I wonder how much shear strength a
screw adds. Suppose it depends on the diameter. Don't want to go too
big though, or you eat away too much of the bar stub material.

I'll probably stick with the epoxy for now but worry about it anyway.
When/if it drives me crazy enough I'll do something about it :)

- Bob

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