Team Associated SR7 Hoonicorn Roller

Stock is as the vehicle ships. Calculated is worked from the stock figures on this page rather than stored beside them, so the two cannot drift apart. Not applicable means the vehicle does not come with it, like the motor on a roller or the tires on a race kit, or does not have one, like a KV rating on a brushed motor. Not published means it exists but no source we could find prints it.

Gearing parts

Tooth counts are the ones in the specifications above. Pitch is given as metric module (Mod 1, Mod 0.8) or diametral pitch (32P, 48P). They are different standards and are not interchangeable, even where the numbers look close. Bore is the pinion’s hole, listed separately from the motor shaft. Linked part numbers go to the maker's or official distributor's page for that part.

How these numbers were settled

The roller is the SR7 Hoonicorn RTR chassis without motor, speed control, radio or servo, so motor kV and cell count do not apply.

• Its product page prints a 2.92 internal ratio, and the RTR manual and parts list name the 45T Mod 1 spur (26013) on the center differential.
• The page does not say whether a pinion comes in the box, so the pinion and the total ratio are left blank; the RTR's gear chart gives spur / pinion x 2.92 for any Mod 1 pinion from 14T to 33T.
• The maker's tire and wheel part (26017) gives a 109mm tire diameter on 17mm hexes.
• The roller page prints a 325mm wheelbase while the SR7 press release it links prints 413mm, so the wheelbase is left blank.

Documents

• Parts listSR7 Hoonicorn RTR parts list (Associated press release PDF) (opens in a new tab)Spur 26013, p. 2
• Gearing chartSR7 gear ratio chart, in the RTR manual (Associated PDF) (opens in a new tab)p. 25

Sources

• sr7-hoonicorn-roller60years.associatedelectrics.com (opens in a new tab)
• Manual (PDF)img2.associatedelectrics.com (opens in a new tab)
• Manual (PDF)img2.associatedelectrics.com (opens in a new tab)
• Manual (PDF)img2.associatedelectrics.com (opens in a new tab)
• 26013-ASC26013-sr7_spur_gea…portal.associatedelectrics.com (opens in a new tab)
• 26017-ASC26017-sr7_hoonicor…portal.associatedelectrics.com (opens in a new tab)

Every figure on this page traces to one of these. Where they disagreed, the note above says which was used and why.

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