Megatech disc brake

[Vincemaxx119]

I just got mine today and was wondering what the second disc was for. First I thought it is simply a spare but i wanted to be certain. Any help will be greatly appreciated.

http://www.megatech.com/product_detail_hop_ups.php?hop_up_cat=TMAXX/EMAXX&ID=22198

 

[Tarant]

I got that same set and yes it is just a spare

 

[Vincemaxx119]

ok. Thank you. Just wanted to be certain.

 

[Tarant]

No Prob