Question:
    Hi I was just wondering what gear ratio is standard on the PRO-M 21-OB (9568). Im in AUSTRALIA and want to know where I could get the different gears from, or someone that has had a bit to do with these motors.How much difference does these gear ratios make to performance and speed.thanks juston
Answer:
    Dear Juston, Thank you for your e-mail. We appreciate your support to Thunder Tiger. There are two gear ratios for the engine PRO-21M-OB. One is 1.19:1 as our parts no. PN0112, the other is 1.04:1 as no. PN0113. They make little difference in performance and speed. Besides, Thunder Tiger has authorized worldwide distributors that provide our customers with selling, marketing, after service, and so on. Please feel free to contact "ACEHOBBY DIST. AUSTRALIA P.L." as below information for service and support. ACEHOBBY DIST. AUSTRALIA P.L. Tel: 61-2-9602-6153 Fax: 61-2-9602-6298 E-mail: mail@kellettshobbies.com Web: www.acehobbyaustralia.com Contact person: Mr. Steven Burgess Best regards, Customer Service Thunder Tiger Corp. Thank you for choosing THUNDER TIGER. [ Simon ]