Personally, I will never buy anything from Minichoppersocal or 909 Minibikes ever again, Here's why. Last year I ordered a Nitro 44 frame kit, when it arrived the first thing I noticed when taking it out of the box was that the engine plate wasn't welded straight, that was just the beginning. I measured the difference forward and aft and there was about an 7mm difference between the two. Then I noticed the welds weren't complete on the axle eyelets and the forks wouldn't fit without first turning them to one side and then hitting them with a rubber mallet just to get them to go on. The seat bracket wasn't straight either, it was like it was made on a Friday night after about a twelve pack or so. I called their number and spoke with whom I believe was the owner and he was very nice but that doesn't account for sending out a terrible product. I told him of the crooked motor mount and he said that it may appear crooked on the frame loop but he assured me that it was straight with the axle hangers and to install the axle and check again.
He also noted that his frame jigs are checked regularly and his tolerances are 1/16" where as the industry standard is 1/4". Funny he should say that because I just happened to have laser crosshairs. I also noticed that there were no holes drilled in any of the tubing, this is necessary when you weld any tubing closed to prevent the gases building up and either blowing out the weld or even worse, the tubing seam. He informed me that he has been doing this for thirty years and I was the first person who has complained about the quality of welds and that he doesn't drill holes in his frames and told me "That must be an east coast thing". You would think that someone who does this for a living would understand welding basics as this was the first lesson I learned from my welding buddy ( who is certified ). Here's a quote from The Welders Handbook "Drill a relief hole in the tubing that's being welded closed. If you don't, air pressure building up from the heat inside the tube will blow out the last of your weld as you finish sealing up the tube.". He did say I could return the frame but he never mentioned to who's expense. He then told me that a TIG welded frame would cost me over $1,000.00, I thought to myself, shouldn't I get a frame that was welded correctly regardless of price?. No story should go without proof so attached are some pictures, the proof is in the pudding.
The first two pictures show the measurements forward and aft, the third is of an incomplete weld, the fourth is of a crooked seat bracket, the fifth and sixth are of my laser crosshairs in the keyway of the tightened axle also centered on the setscrews, the seventh is of how far off the motor mount holes are off from the laser line tool ( notice the laser is on the inside of the bottom hole and almost the outside of the top hole ), the eighth picture is of a blown out weld from not drilling holes in your tubing before welding it closed. I thought that made in U.S.A. meant something and was a big reason for me to purchase this frame but apparently some kid in China can weld better than this guy with over thirty years experience, not to mention the whole " east coast " remark. So if you live on the west coast, maybe the welds won't fail or maybe it won't throw chains with it's crooked motor mount but hey, with the crooked seat bracket, you'll feel as if you're going straight!.
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