Tuesday, September 26, 2023

Hop Ups: Helion Animus 18SC & Hpi Crawler King

Our picks for performance, durability, and/or appearance upgrades

Here are our accessory and hop-up picks for today’s popular vehicles that can boost performance, durability and/or appearance and leave you with a sweet custom ride.

This article was originally published in the RC Driver’s April 2016 issue.

TYPE: 1/18-scale 4WD electric RTR short course truck
PRICE:$99.99 (item no. HLNA0598)

HOP-UP: Radient Reaktor mini sensorless brushless motor combo
PRICE:$79.99 (RDNA0075)

Drastically boost the speed and acceleration of the Animus with the Radient Reaktor brushless motor system. The 30AMP ESC and 2-pole brushless motor replaces the stock brushed motor and electronic speed control. The install is simple and you should consider a LiPo battery pack to further improve performance.

HOP-UP: Helion aluminum center driveshaft
PRICE:$14.99 (HLNA0174)
The Animus comes stock with a plastic center driveshaft which can hinder performance when a brushless motor system is installed. Instead use Helion’s orange anodized aluminum center driveshaft which will resist any twisting and will more efficiently transfer power out to the diffs.

HOP-UP: Helion aluminum motor mount
PRICE:$19.99 (HLNA0170)
Give the new brushless motor and super solid mount with the optional Helion aluminum motor mount. It comes anodized a deep orange color and includes the mounting hardware to install it onto the chassis.

TYPE: 1/10-scale 4WD electric RTR rock crawler
PRICE: $289.98 (item no. 113225)

HOP-UP: HPI gear reduction box set
PRICE: $19.99 (87634)
You want to have a lot of torque on tap for a rock crawler and HPI’s reduction gear box set will jump the stock gear ratio from 23:1 to an incredible 174:1. The case is made of metal complete with all metal gears inside and spins freely with ball bearings. It is installed between the motor and motor plate.

HOP-UP: Holmes Hobbies CrawlMaster Sport 540 13t
$34.99 (110100025)
When you install an aftermarket motor from Holmes Hobbies like the affordable CrawlMaster Sport brushed motor, the Crawler King will have much more power to tackle the rocks. An added benefit of this motor is that it is rebuildable and easier to maintain compared to the closed endbell motor that comes stock in the truck.

HOP-UP: HPI aluminum wide hex hub
PRICE: $44.99 (88055)
Some added stability is always a good thing, especially when rock crawling. This aluminum wide hex hub set from HPI will increase the truck’s width by an inch. It comes with all of the necessary hardware to make the installation trouble-free.

Helion, helion-rc.com, (800) 205-6773
Holmes Hobbies, holmeshobbies.com, (573) 289-6747
HPI Racing, hpiracing.com, (888) 349-4474
Radient, radientrc.com, (800) 205-6773


  1. Wheel bearings, to replace the stock bushings, should the first upgrade for the Helion 18sc.

  2. What servo and bracket

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