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Primary Drive Sprocket Bolt and Nut Kit
AARON in NV
Snapped scared
I have never had bolt just break off. I am fanatical at torquing everything to spec and after I went riding I was unloading my bike and noticed half of a bolt in the bed of my truck. Then I noticed two missing bolts. I was riding the next day so I grabbed some extra bolts put them on and then checked the other bolts. Again when I went to torque one of these bolts it just snapped off without any effort. This was very concerning to me. Luckily my buddy had a set of new bolts so I could replace all of them.
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Primary Drive 520 ORH Gold X-Ring Chain
Rob in CO
Not Confidence Inspiring
With all the great reviews, I thought I would give this chain a try while doing a gearing change on my WR250R. Looks and feels like a quality chain. Installation was no problem (had to remove two links) and like some of the other reviewers, found the master link clip a bit looser (popped right on with a bit of play) than preferred. Adjusted tension within manufacturers’ tolerance and just figured it would all settle in and be fine. Went for 10 mile odometer calibration run and came back with the chain dripping melted grease all over the place. The chain was a little warm (not hot), but found it disturbing that a significant portion of the grease was no longer in the chain. Cleaned the chain (and bike) and lubed the chain with Yamaha off road chain lube. First trail ride (30 miles or so) and noticed a little bit of chain stretch. Cleaned and lubed again. After second ride of 50 or so miles of fairly aggressive (for an old guy) dirt road riding, chain was stretched to the point that it could be pushed in contact with the swing arm (Yamaha measures from underside of swing arm pushing upward) while checking tension. Had absolutely no stretch with stock DID chain. I will adjust it and use it for probably a couple more short local rides and re-evaluate. In all likelihood it will be replaced with an alternate before any significant back road trail riding. Lastly, looks great, but I don’t have the confidence that this chain will hold up when I really need it to.
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Primary Drive 420 MC Professional Chain
Timothy in CO
Worked great, don't last forever.
Worked great. I prefer the gold chains personally. These will rust if not taken care of meticulously. Great price.
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Primary Drive 520 ORM O-Ring Chain
Bradley in FL
Chain performs and holds up well
I bought this chain a few months ago and it is still holding up great. I ride about 2 to 3 times a month and 0erform regular chain maintnence after every ride. This chain is still looking almost new and almost no signs of wear. The only problem i have encountered with this chain which may be because it is new or because of my bike, is that to properly adjust the chain tension the tire comes forward past the adjustment lines, I was still able to set the chain tension but because I did not have the adjustment lines to reference it was more difficult to make sure the tire was straight. Maybe it is better like that because as the chain wears it will stretch and I will have plenty of adjustment room.
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Acerbis Chain Guide Block 2.0
Scott in IN
Loud
Product works well and fit nicely. It is extremely noisy!
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Renthal Front Sprocket
Chris in FL
Renthal Front sprocket
Good Front sprocket and get a lot of use and time out it.
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