Kyosho Rock Force Option Parts

[Chilly Duncan]

84042

New from Kyosho (http://www.Kyosho.com):

New genuine Kyosho option parts for your Rock Force are now available! The new rear drive disconnect unit (DIG) will give you the advantage over the other guys and there so called crawlers. If more speed is what you are after, the high speed gear set will satisfy your need

No. RFW001 Rear Drive Disconnect Set (DIG)
No. RFW002 High Speed Worm Gear Set

84043

84044

84045

[rccardude04]

other guys and there so called crawlers.


Grammar Fail. :D

On the less nit-picky side, I had thought this thing had a dig from the factory? Maybe not I suppose.

Also, the high speed worm gear set looks interesting. I wonder how "high speed" they're talking. :)

-Eric

[andystoybox]

Grammar Fail. :D

Maybe not I suppose.

-Eric

Speed changes much quicker by dropping a tooth size on the spur so they are less "tuneable" than spur/pinion combinations. It appears that the spur is a 30 tooth and the worm is 7. If they made that a 31 or 32 tooth spur, the diameter of the worm would have to decrease to stay within the original bearing mount sizes (making these gears a set, not just an individual pinion or spur change). When that happens, the ratio changes in larger chunks. Also, worm drives are fairly stout since the overall tooth contact patch has increase with one of the "gears" being linear. I am curious what the original tooth count is and then being able to compare reduction.

Has the truck been released and does anyone have any driving experience with it?

I don't see this application being able to be converted to a puller truck but it would be cool since you can now overdrive just the front axle to keep the truck tracking straight.

[4wdmt]

Yup. It is out for awhile now. It is actually available at ebay and stormer hobbies.

Some hardcore RC crawlers (from the other board) even noted that the KRF badly need this hi-speed gear set.

I would really like to own one. But it is kinda pricey for $400 kit (without motor, oil shocks and grease) plus $28 a piece for those hi-speed worm gear set. ouch!

Hope there are some good deals on fleapay soon.