midlifecrisis Posted October 29, 2010 Report Share Posted October 29, 2010 Im just wondering if a set of spindles off a j arm, are interchangeable with an a arm banshee? Quote Link to comment Share on other sites More sharing options...
NYUK Posted October 29, 2010 Report Share Posted October 29, 2010 yes but the caliper mounts are different. if you run a j arm spindle, you gotta run j arm front brakes. Quote Link to comment Share on other sites More sharing options...
bansheesandrider Posted October 29, 2010 Report Share Posted October 29, 2010 yes but the caliper mounts are different. if you run a j arm spindle, you gotta run j arm front brakes. 87-89 use the early style spindle and caliper, 90 on use the late style spindle and caliper. J arm bikes are 87 through 90 and A arm bike are 91 on. So as you can see, the 1990 J arm bikes had the later style spindle and calipers. You just have to make sure that your calipers match your spindles and you can use either style on either type of suspension arm. And if you want to put YFZ450 calipers on your Banshee, you need the late style spindle for them to bolt up. Quote Link to comment Share on other sites More sharing options...
banshee67 Posted October 31, 2010 Report Share Posted October 31, 2010 a arms are stronger and are wont bend as easily if you do allot of jumping Quote Link to comment Share on other sites More sharing options...
midlifecrisis Posted November 15, 2010 Author Report Share Posted November 15, 2010 What so you shouldnt jump a j arm? The reason I ask is my buddy just bought a j arm for $750, and so were gonna fix it up a LOT. Not worth it though if theyre just gonna bend. Quote Link to comment Share on other sites More sharing options...
banshee67 Posted November 15, 2010 Report Share Posted November 15, 2010 (edited) they dont bend EASILY but the a-arms are much stronger. would advise aftermarket shocks if you are planning on competing in mx or just cant stand being on the grand. that way if you have a hard landing you shouldn't bend the arm. but stockers should be fine if your not doing an mx beast. Edited November 15, 2010 by banshee67 Quote Link to comment Share on other sites More sharing options...
87sheerips Posted November 16, 2010 Report Share Posted November 16, 2010 What so you shouldnt jump a j arm? The reason I ask is my buddy just bought a j arm for $750, and so were gonna fix it up a LOT. Not worth it though if theyre just gonna bend. Keep the J-Arm. Call Tim @ stellar machine and performance and he will build u a set to last. I run his J-arms on both my bikes and they are extremely tough!!! Quote Link to comment Share on other sites More sharing options...
camatv Posted November 16, 2010 Report Share Posted November 16, 2010 when i was racing a banshee in mx ( back when they were actually competitive) it was a j-arm model with +3 dentons NEVER had a problem with the frame OR the a-arms. my first dune/ drag bike IS a j-arm model with denton arms also. NEVER had a problem with it either.. i dont know where the saying j-arms are weak came from.. Quote Link to comment Share on other sites More sharing options...
banshee67 Posted November 16, 2010 Report Share Posted November 16, 2010 i was talking about an all stock j-arm. like you had said CAM, you had a somewhat aftermarket setup. and if he is wanting to keep the stock setup he just needs to be cautious with the jumping. and try to stay away from the jumps where you bottom out your shocks. and a-arms are stronger, you cant deny that. i mean there was a reason that yamaha gave it an update fairly early. so there is nothing wrong with the j-arm but be careful and it will last as long as any other arm Quote Link to comment Share on other sites More sharing options...
camatv Posted November 17, 2010 Report Share Posted November 17, 2010 if your going to race an all stock j-arm banshee, in MX, and think your competitive, your nuts.. in my OPINION the stock shocks are what sucked the most on banshee's ( and a few other bikes for that matter) Quote Link to comment Share on other sites More sharing options...
12 0 Clock P I M P Posted November 17, 2010 Report Share Posted November 17, 2010 Nothing wrong with J's word on the street is they wear through bushings faster than A's but a slight difference But good luck trying to bend them though....they are just as tough As mentioned they have a diff caliper design ...... Quote Link to comment Share on other sites More sharing options...
Overboost Posted November 19, 2010 Report Share Posted November 19, 2010 (edited) i was talking about an all stock j-arm. like you had said CAM, you had a somewhat aftermarket setup. and if he is wanting to keep the stock setup he just needs to be cautious with the jumping. and try to stay away from the jumps where you bottom out your shocks. and a-arms are stronger, you cant deny that. i mean there was a reason that yamaha gave it an update fairly early. so there is nothing wrong with the j-arm but be careful and it will last as long as any other arm the jump in my avatar was on a stock J-arm banshee, they didnt bend or break. people just dont like them because they changed them, so they make up stories that they were weaker and inferior. acually, they only changed because everyone else went with A arms and in their ads, they depicted them as stronger so people were clammering for them on the banshee, and in 91 *POOF* they had A arms Edited November 19, 2010 by Overboost Quote Link to comment Share on other sites More sharing options...
bansheesandrider Posted November 19, 2010 Report Share Posted November 19, 2010 (edited) Nothing wrong with J's word on the street is they wear through bushings faster than A's but a slight difference But good luck trying to bend them though....they are just as tough As mentioned they have a diff caliper design ...... Yes, J arms do wear out the bushings quicker. I had to go to the Toomey brass bushings in my 89(all that was made at the time) back in about 91, my wfe's 97 still has the stockers in it.Everybody is confused about the brake/spindle thing. As I said before, 1990 J arm bikes have the later style brakes/spindles, so it is not a change because of the arm type. Oh yeah, my wife bent an A arm just as easily as I bent a J arm. Edited November 19, 2010 by bansheesandrider Quote Link to comment Share on other sites More sharing options...
jbooker82 Posted November 19, 2010 Report Share Posted November 19, 2010 What about where the A and J arm mount to the frame. The J arm is narrower so it will put more force on the frame (front to back) Quote Link to comment Share on other sites More sharing options...
bansheesandrider Posted November 20, 2010 Report Share Posted November 20, 2010 What about where the A and J arm mount to the frame. The J arm is narrower so it will put more force on the frame (front to back) That is why they wear out the bushings sooner. Quote Link to comment Share on other sites More sharing options...
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