7GEAR SELECTION INSPADJA B C DEFGABDrive gearDriven gearA B C D E F G H IAB SeatSheaveGEAR SELECTION1 Chain and sprocket part numberParts name Teeth & links Parts no. Standard19 teeth 8FA-17682-9020 teeth 8FA-17682-00Drive sprocket 21 teeth 8FA-17682-10 RX10MK, RX10MSKDrive sprocket 22 teeth 8FA-17682-2023 teeth 8FA-17682-30 RXW10K, RXW10SK24 teeth 8FA-17682-40 RX10K, RX10RK, RX10RSK37 teeth 8DW-47587-7138 teeth 8DW-47587-81 RX10KDriven sprocket 38 teeth 8FB-47587-80 RX10RK, RX10RSK, RXW10K, RXW10SKDriven sprocket 39 teeth 8DW-47587-9139 teeth 8FB-47587-9040 teeth 8DW-47587-01 RX10MK, RX10MSK68 links 94890-09068Chain 70 links 94890-09070 RX10K, RX10RK, RX10RSK, RXW10K,RXW10SK, RX10MK, RX10MSK2 Gear ratio19 teeth 20 teeth 21 teeth 22 teeth 23 teeth 24 teeth37 teeth 1.7668 links1.6868 links1.6168 links1.5470 links38 teeth 1.9068 links1.8168 links1.7368 links1.6570 links1.5870 links39 teeth 2.0568 links1.9568 links1.8668 links1.7770 links1.7070 links1.6370 links40 teeth 2.1168 links2.0068 links1.9170 links1.8270 links1.7470 links1.6770 links3 Secondary sheave springPart no.Spring rateNmm / rad(kgmm / rad)PreloadN / mm (kg / mm)(lb / in)ColorWiregaugemm (in)No. ofcoilsFreelengthmm (in)Outsidediametermm (in)Standard90508-500B1 6003 (613) 6.2 (0.63), 35.28 Brown 5.0 (0.196) 5.19 75 (2.95) 69.5 (2.736)90508-536A9 7147 (729) 7.3 (0.74), 41.44 Red 5.3 (0.209) 5.53 75 (2.95) 69.5 (2.736)90508-556A2 8314 (848) 8.5 (0.87), 48.72 Green 5.5 (0.217) 5.53 75 (2.95) 69.5 (2.736)90508-556A7 9460 (965) 10.21 (1.04), 58.24 Silver 5.5 (0.217) 4.86 75 (2.95) 69.5 (2.736)90508-60012 11876 (1211) 12.32 (1.256), 70.34 Pink 6.0 (0.236) 5.53 75 (2.95) 69.5 (2.736) RX10K, RX10RK, RX10RSK90508-60007 12654 (1290) 13.45 (1.372) 76.84 White 6.0 (0.236) 5.19 75 (2.95) 69.5 (2.736) RXW10K, RXW10SK,RX10MK, RX10MSK4 Secondary spring twist angle0 3 6 91 10 40 70 1002 20 50 80 1103 30 60 90 120