4 Stage Viper-Slide Kit (Cable Driven, 336mm Slides)


DISCONTINUED This product has been discontinued.

Replaced by...

The Belt-Driven 4-Stage Kit boasts a simple setup, along with smooth, consistent motion from one cycle to the next!

4 Stage Viper-Slide Kit (Belt-Driven, 336mm Slides)
4 Stage Viper-Slide Kit (Belt-Driven, 336mm Slides)

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Achieve smooth and stable slide motion with the 4 Stage Viper-Slide Kit! Its Steel Viper-Slides provide a strong backbone in compact form, enabling linear motion of extraordinary reach and stability.


The 4 Stage Viper-Slide Kit is highly mountable to almost anything goBILDA® thanks to an on-pattern 1120 Series U-Channel at its base.

The kit’s extension end rocks a grid-pattern of both thru-holes and threaded holes for the secure attachment of everything you intend to extend—from ServoBlocks™ to U-Channel and more.

Unlimited Direction, Awesome Distance

This kit can make linear Viper-Slide action happen in any orientation, whether it’s up, down, left, right–you name it!

In terms of extension, it’s capable of a maximum of 976mm (38.4”) of travel (difference between retracted and extended length) while measuring a compact 384mm (15.1”) top-to-bottom length in its retracted state.

Motor Compatibility

Just install a motor of your choice to get the Viper-Slide Kit up and running! The kit’s 1201-0043-0002 Pattern Mount and 8mm REX Sonic Hub are both super-compatible with whatever goBILDA® 5203 Series Yellow Jacket Planetary Gear Motor has the right ratio for your robot.

Configurable Travel Distance

A 112mm (4.4”) circumference pulley drives the kit 112mm per rotation. With a maximum travel distance of 976mm (38.4”), the kit reaches full extension at 8.7 rotations of its motor’s shaft.

The fastest motor we recommend for most applications is a 13.7:1 (435RPM) Yellow Jacket Planetary Gear Motor. That ratio can extend all four stages in about 1.2 seconds! Because of such high potential speed, we recommend using the encoder on the 5203 Series motor to start and stop your kit at appropriate limits.

Don't Forget

Be sure to purchase the 5203 Series Yellow Jacket Planetary Gear Motor of your choice to power this kit. If you’re using a REV Control Hub, or REV Expansion Hub, don't forget to pick up a motor cable adaptor! We also highly recommend using your motor’s encoder. If you do so, you’ll need an encoder cable.


Weight 1461g (Motor Not Included)
Spool Rotations to Max Extension ~8.7 (976/112)

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