ganopper 30t 32t 34t bike chainring bash guard 104bcd single speed narrow wide oval chain ring bashguard mtb mountain bike spocket protector with bolts spacer thim ganopper bcd: 104mm ,<br> shape : round , <br> thickness: 4mm,durable. <br> diameter:150mm ,<br> weight:approx 59.2g(0.13lb)<br><br> bolt size:m8*16.8mm long bolts<br> bolt spacer thickness:2mm<br><br> fit for 104 bcd 30 tooth , 32 tooth , 34 tooth chainring<br><br> use for single speed/double/triple crankset refitted into 1x,2x system,considering interference,if your crankset is single speed design ,please add spacer between chainring and bashguard before use<br><br> package:<br><br> bicycle chainguard* 1pcs<br> mtb crank set bolts* 4 sets<br> 2mm thickness bolt spacer*4pcs<br>