XRAY X12'26

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. Derived is worked out from gear tooth counts the maker publishes rather than printed as a ratio; the notes below say how. 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.

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.

How these numbers were settled

1/12 pan car kit.

• The manual marks the 80T/64P composite spur (#375880) as included and mounts it directly on the rear axle, so there is no reduction after the spur and the total ratio is simply spur over pinion.
• Motor, pinion, speed controller and tires are not included, so the tire size is left blank; foam pan car tires are trued to size by the racer anyway.

Documents

• ManualInstruction manual, X12'26 (XRAY PDF) (opens in a new tab)Spur PDF p. 18; pinion range p. 22
• Exploded viewExploded view and parts list, X12'26 (XRAY PDF) (opens in a new tab)
• Parts listSpare parts list, X12'26 (XRAY PDF) (opens in a new tab)

Sources

• Manual (PDF)teamxray.com (opens in a new tab)
• p1675014amainhobbies.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.

More from XRAY

• XT8'24
• GTX8'27
• X1'27
• X10'26
• X4'26
• X4F'27
• XB2'26
• XB4C'26 (carpet)