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Mini Dirt Bikes & Pit Bikes Forum

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  1. Blender

    250 Engine mods.

    Hey guys, been very busy lately, and I have finally got some spare time back! Any way, I am thinking of getting some engine work done, but am pretty much clueless. I am thinking- Lightened flywheel, port and polish, and high comp piston (do they make them??) Now, the polishing I can do...
  2. Carlts

    FOTM March-April 2012

    Okay guys, Chuck your entries up for the first FOTM of 2012, we are trialling something different, so there will be a minimum of 5 bikes and a max of 10 so get in quick. Entries close this Sunday @ 12:00pm (18/03/12) Good luck lads, Carlton
  3. F

    Atomik comp 250

    Hi guys, I am looking at getting one of these 2 bikes. The atomik comp 250: Comp 250cc - Competition Bike - Dirt Bike and the atomik fuse 250: Fuse 250cc - MX Bike - Dirt Bike Just wanted to see if anyone here owns one of these bikes or can shed some light on them as i cant seem...
  4. I_THUMP

    The 2009 Miniriders Video Competition. . . . Closed

    Here we go miniriders, this is the entry thread for the Video competition so post up all your vids here. Ken from DHZ and Pitster Pro Australia is going to award the winner with a $100 voucher to spend in any of his online stores. You can use the voucher on small items or you can use it as...
  5. I_THUMP

    DHZ and Pitster Pro present The Miniriders Christmas Competitions

    Since Christmas is rapidly approaching we thought we would run a couple of competitions for all our members to get involved in. Ken from DHZ and Pitster Pro Australia is going to award the winner of each competition with a $100 voucher to spend in any of his online stores. You can use the...
  6. PIMP50

    lifan 140 piston

    how big is a lifan 140 piston in MM thnaks
  7. L

    hi comp piston for lifan 150 akunar

    hi all, hope you are all well:) im trying to find a hc piston from akunar for my lifan 150, im not sure which 1 to get could you point me in the right direction longjohn
  8. D

    57mm akunar piston on 140 lifan?

    Alright after looking at the cheap piston here, I have decided to step it up since the engine is here and apart. This is all regarding a 140cc OGM (Lifan). I was looking at the akunar piston AKPRP010-A which is a high compression piston with a pintop to deck height of only 13mm compared to the...
  9. D

    Need piston for 140 lifan

    alriight if anyone can direct me to a new h/c piston for the 140cc OGM (lifan) engine that would be great. I belive the diameter is 55, I will then just hone out the cylinder and put the piston in, along with a head with new updated valves, springs and all that for a race cam. I belive this will...
  10. D

    Lifan 140cc piston diameter??

    I need to buy a new piston and was wondeing if you guys could help me out. I need to know the dimensions of the stock 140cc piston, thanks
  11. D

    140cc OGM engine piston/cylinder

    Hi there, I was wondering where I could buy a cylinder and high comp piston for this engine. I measured the piston and it seems to be 54 in width, but iv seen some people say its 55. So any help would be great!!! thanks a lot
  12. M

    trying to buy the right cam and piston from akunar

    i would like to buy crower g2 equivilent cam and hi comp 10:1-10.5:1 piston from akunar but dont know there product descriptions and dont want to f#$k up the order has any one ordered the same thing i,m after from akunar. i have a lifan 138 (127) 55.5 x 54 with irk. and would greatly appreciate...
  13. W

    Perfomance 125cc Cylinder and Piston Barrel

    Just wondering if this would make much/any differance to the standard ducar, loncin engine, cheers http://cgi.ebay.com.au/BN-125cc-Cylinder-and-Piston-Barrel-for-Performa-Race_W0QQitemZ4636721274QQcategoryZ29705QQtcZphotoQQcmdZViewItem
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