50 Caliber Racing 2.5" Extended Swing Arm Fits CRF50 XR50 XR70 Models

Had to file the paint off where the brake mounts to the swing arm, other than that the fitment is better than I thought. Not sure if I just got lucky or if the bad reviews are just people who don’t know what they’re doing. Either way I’m satisfied, I definitely recommend it.

This was exactly what I was looking for!

Wanted to use on an 2003 XR70. Product was not "plug and play", nor even close to it as described. Stock suspension bolt was not long enough, axel bolt was not long enough, chain guard bolts did not fit, spockets did not line up, and brake line (even with extender) did not line up. It also changed the geometrics of the stock swingarm dimensions, contradictory to the product description.Very disappointing to spend all that time trying to put on. Also broke the brake line trying to force the issue... So on top of returning and wasting my time, I needed to buy replacement parts. And to top it off, the company charged me a restocking fee.

These work but get ready to must your buckles and break out the grinder to get the back wheel on. Chain is also too long so you will need a chain breaker or a shorter chain

I bought this for my son's Honda XR50. I had previously bought the longer front forks and I was also installing a new rear shock. Overall quality was very good, Though I was disappointed with the application of the graphics/stickers... Installation was easy, and although I hold an engineering degree, I would say that anyone with basic mechanical knowledge and tools could get this done.Here are my observations:1) The original Honda swing arm is designed with an offset so that the wheel/hub sits centered in the swing arm, This unit is symmetrical and therefore does not have the offset, so once the original wheel and spacer is installed, the wheel actually sits about 1/2" to the right. This is where the wheel needs to be if you want to maintain proper chain alignment.2) The pivot bearings weren't seated all the way so I had to tap them in a little in order to install the pivot bolt/nut to the frame. Once installed I had to put a few washers behind the nut because the total width is slightly narrower and you run out of threads on the bolt before it gets tight. Washers not included. (but who doesn't have a few washers laying around).3) Alignment of the rear axle was done with the included jack bolts/aluminum alignment plates. I did this with a set of calipers so that it was as close to perfect as possible. My only complaint here is that the pockets are so narrow that a typical box wrench couldn't be used to make fine adjustments. A pair of pliers was needed to adjust the nuts/bolts then I used the box wrench to tighten.I gave this 4 stars for three reasons...1) I didn't need them but I wished there were instructions just to verify some of my dimensions.2) They really should tell you that the stock Honda wheel/hub will not sit perfectly centered. I called their tech line and they verified that the offset exists and that the only way to fix it is to get a new wheel/hub assembly with the proper offset to the sprocket. Maybe when I upgrade to 12" wheels/tires I will address this.3) The engineering was OK, but the wrench clearance, bearing installation and sticker placement were disappointing.

Modification needed that was not stated

Bolts up fine but the the sprockets don't line up and it causes the chain to come off and crack cases. Do not buy this product until the realize the need to offset the stance on the swingarm or your wasting time and money like I did.

Swing arm seems of decent quality material however it took some grinding of the axle blocks and also had to flex it to fit the rear wheel. All in all anyone with minor mechanical skills can make this thing work pretty easily. Would def recommend for the price.