Description
The #415 Rear Sprocket is the premier rear sprocket for any #415 chain setup for your Jr. Dragster. This #415 rear sprocket is made of 6061 aluminum and is 0.160″ thick. This sprocket is a two part sprocket that utilizes an interlock to make sure that it lines up perfectly.
To Calculate Gear Ratio:
(Rear Sprocket Teeth #) / (Front Sprocket Teeth #)
| #415 | Rear Sprocket Teeth # | ||||||||||||
| 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | ||
| Front Sprocket | 9 | 7.11 | 7.22 | 7.33 | 7.44 | 7.56 | 7.67 | 7.78 | 7.89 | 8.00 | 8.11 | 8.22 | 8.33 |
| 10 | 6.40 | 6.50 | 6.60 | 6.70 | 6.80 | 6.90 | 7.00 | 7.10 | 7.20 | 7.30 | 7.40 | 7.50 | |
| 11 | 5.82 | 5.91 | 6.00 | 6.09 | 6.18 | 6.27 | 6.36 | 6.45 | 6.55 | 6.64 | 6.73 | 6.82 | |
| 12 | 5.33 | 5.42 | 5.50 | 5.58 | 5.67 | 5.75 | 5.83 | 5.92 | 6.00 | 6.08 | 6.17 | 6.25 | |
| 13 | 4.92 | 5.00 | 5.08 | 5.15 | 5.23 | 5.31 | 5.38 | 5.46 | 5.54 | 5.62 | 5.69 | 5.77 | |
| 14 | 4.57 | 4.64 | 4.71 | 4.79 | 4.86 | 4.93 | 5.00 | 5.07 | 5.14 | 5.21 | 5.29 | 5.36 | |
| 15 | 4.27 | 4.33 | 4.40 | 4.47 | 4.53 | 4.60 | 4.67 | 4.73 | 4.80 | 4.87 | 4.93 | 5.00 | |
