Slick 50 (gearbox)

**mcdarbyfeast** · #1 10 Mar 2003

I have a R100gs and have been recommended, by a few people, that the use of 'Slick 50' 'Manual gearbox additive' would improve operation and longevity. I wouldn't use an additive in the engine, but haven't heard anything bad about the use of the stuff in the gearbox. Does anyone have any experiance with this product?

**ChrisK** · #2 10 Mar 2003

Hi, I have used molyslip gearbox addative and PTFE addative in my R80 box and I find it makes the gear change noticably smoother. I also use addative in the engine every now and then and this also makes the engine feel much smoother. I always used to doubt the benefit of these addatives as modern oils have everything thats required but now personal experience says that they work.
Regards Chris

**Roboyobo** · #3 4 Apr 2003

Chris

What oil are you putting in the engine? Wally at CW's recommended that i use 20/50 Castrol GP - not exactly a modern oil, but it's not exactly a modern engine. Anything else burns off quite quickly, plus it does seem to run better on the thick stuff.

I actually had a brand new gearbox recently, and i still get the occassional gear change problem. Perhaps some of this magic additive might help?

Rob

**Grant Johnson** · #4 4 Apr 2003

20-50 is the CORRECT weight for an R100xx engine in 90% of the riding conditions you will encounter. See the manual for specifics, but that should be good down to around 5 degrees C and up as high as you care to ride. Around 40 degrees I think they recommend straight 50.

The gearbox needs around 10,000 miles to fully break in - in the meantime anything more slippery than the standard 80w-90 you put in it will slow down the break-in.

Give it time. It will NEVER shift as good as the best boxes out there, but with time and miles on it - and some experience for your foot - it will be just fine. A missed shift should be a VERY rare event.

Some form of moly once the box is broken in is probably good.

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Grant Johnson

Seek, and ye shall find.
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One world, Two wheels.
www.HorizonsUnlimited.com