Sidewinder pinion 6.5mm 13 tooth x2 SIPS13 Price : $7.50 Add to Compare Add to Wishlist Units in Stock : 2 Reviews  Write Review  Customers who bought this product also purchased... H&R Racing Hawk motor 18,000rpm @ 12V HRHM1 Slot.it Wheels 16.5 x 10.5 1.5mm hub w16510215m Chassis - Hard for Lamborghini Hurracan SWLBH/A2 Grub screws M2 L 3mm x10 PA40 Sidewinder Gear 18mm Diam. 35 tooth SIGS1835