As I understand it, the S10's bars are tapered and have the same basic exterior dimensions at ProTaper type bars, but are steel rather than alum.
It is generally thought that ProTaper type bars reduce vibes on dirt bikes over conventional non-tapered steel bars, but I don't know how much of this is the shape and how much is the material. I think we've already has some reports that installing ProTapers helps the vibes, but I always take reports like this with a bit of salt as vibration is subjective and varies tremendously from day-to-day based on things like weather and normal variations in engine tune. And there is always a natural tendency to think a mod has improved something, regardless of whether it actually did or not.
Certainly if you wanted to try alum tapered bars, they should bolt right up without having to mess around with perch adapters. But you may have to figure out a way to do expander plugs for the handguards and bar ends. Keep in mind that the ID of alum bars is not the same as the ID of steel bars - the alum bar has a thicker wall diameter. And you may need to drill the bars if you want keep the stock switch gear indexing (which I think is a good idea).
One other consideration is that alum bars are challenging for heated grips - alum has 4x the thermal conductivity of steel. I have had experiences where the same grips that were toasty on a bike with steel bars were anemic on a bike with alum bars.
The simplest and most cost effective handlebar vibe controls are typically different grips and heavier bar end weights. I don't see an application yet, but Throttlemeister has a heavy model of their throttle lock which adds a lot of weight vs. the stock bar end weights, so this is a good, albeit expensive, option and gives you an elegant throttle lock. Perhaps the FJR TM model fits the S10.
Heavy bar snakes or filling the bars with lead shot can help, but it adds a lot of weight up high on the bike. And if the bars have internal nut plates rather than expander plugs, this makes this a difficult modification. I've very skeptical if filling the bars with lightweight material (e.g., foam or caulk) does anything. You need mass to damp engine vibes.
Handlebar mods can get expensive and complicated. When I put ProTapers on my V-Strom I had to source lots of different parts to get the handlebar, perches, grips, heating elements, hand guards, throttle lock, expander plugs, etc. all to play together and it cost $600 before the day was done. And I had to spend $45 for a special drill bit to drill the handlebar to get the right ID for the throttle lock. Even with a drill press, this was difficult and tricky.
- Mark
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