The bottom chain guide bolts once aligned at the bottom it did not align the single bolthole at the top. Tried several times but when managed to get the bolts for guides in place with force the chain guide flexed out-of-place making the guide bend a little. The solution was to file down the top hole about 2-3mm to fit the top guide bolt in snugly without bending the longer chain guides and making the chain vulnerable. A bit of tinkering and guide bolts were in place without applying any force. Overall quality is good, and I think the manufacturing company needs to look into this issue. I purchased the VVT gear separately and completed the kit. Cheap solution.