ganopper 38t square taper crankset 1x mountain bike 170mm 104 bcd square mtb crank arm set ganopper specifications:<br><br> crank set material: 6061 alloy<br> 38t narrow wide gear chain ring material: alu 7075<br> 38 tooth chainring weight: 71.5g(0.15 lbs)<br> single chainring fits for 9/10/11s 104 bcd 1x mtb crankset<br> crank length: 170mm<br> bcd: 104mm(outer circle) square taper hole<br> bb type: bsa bottom bracket<br> suitable for most of 9 10 11 speed mtb mountain bike,road bicycle<br><br> package include:<br><br> 1 x 104 mm bike crank (bb not included)<br> 1x 38t chainring narrow wide teeth<br> 4 x crank arm set bolts(m8*8.5mm)<br><br> faq<br><br> q: what is the size of crank?<br> a: 104mm bcd<br><br> q: what is the lenght on this arm?<br> a: 170mm<br><br> q: does this crankset come with bottom bracket?<br> a:no<br><br> q: what pedal size does this crankset work with? 9/16 or 1/2?<br> a: 9/16"<br><br> q: is the crank chainring removable?<br> a: yes , this crank is triple crankset design. you can modify the crank into single speed chainset,2 or 3 pieces chainring crankset<br><br> q: does this work on a square taper crankset?<br> a: it is a crankset made for square taper bottom brackets<br><br> q: what is the crank bolts size?<br> a: m8 , 4 set bolts are incuded in the parcel<br>