first im gonna explain route 325 Oda's used it in his story a trillion times. It's basically wordplay where Japanese words are picked apart and replaced with numbers that sound the same. Straw Hat Pirates: Chopper = 1 & 10 Hi=1, To=10, he ate the Hito Hito no mi Luffy = 5 & 6 Go=5, Mu=6, he ate the Gomu Gomu no mi Robin = 8 & 7 Ha=8, Na=7, She ate the Hana Hana no Mi Brook = 4 & 3 4=Yo, 3=Mi, He ate the Yomi Yomi no MiSo what numbers are left? 2 and 9. What obvious Japanese word is formed from those two combined? Fuku, the Japanese word for clothing. Who do we know who ate the Fuku Fuku no Mi? Goddamn Kinemon and he is two swords style user.that means if he joins brook to weak group? What's more... so route 325 means; 110+56+87+43+29=325 Seperated is 3, 2, and 5 Pronounced in Japanese as "San Ni Go" Sunny Go i think you got it? so when we consider Japanese manga we always read from right to left then when we consider about bicycle order we must also consider that rule.from right to left you can see four bikes. including shark thing.when we go from right to left shark side car is number four but its a side car and connected with 3rd bicycle. assuming that these four bicycles resembling future four nakama we can see something why 3rd and 4th is connecting together.when i think about that something comes to my mind stronger and doc q.we can see both of them together at every time. so if those four bicycles represent future nakamas why 3rd and fourth bikes connecting together only explanation is 3rd and fourth nakama who are gonna join to SH are something similar to DoC q and Stronger.so when BB vs SH gonna happen in future the last two new crew members are the opponents of Doc Q and stronger.And those last two members are similar to Doc Q and stronger.i think you got my point.