Use the table below to find the size of sprockets and length of chain that your bike uses.
| Bike | Year | Front | Rear | Links |
| Beta | ||||
| Rev 3 250, 270 | 2000 to 2008 | 11 | 41 | 100 |
| Rev 3 200 | 2000 to 2008 | 11 | 42 | 101 |
| Rev 3 125 | 2007 to 2008 | 9 | 43 | 104 |
| Evo 250, 290, 300 | 2009 to 2014 | 11 | 41 | 100 |
| Evo 300 | 2014 on | 10 | 42 | 100 |
| Evo 250 | 2015 on | 10 | 42 | 100 |
| Evo 200 | 2009 on | 11 | 42 | 101 |
| Evo 125 | 2009 on | 9 | 43 | 101 |
| Sincro | 2026 on | 11 | 42 | 101 |
| GasGas Pro | ||||
| 250, 280, 300 | 2002 to 2018 | 11 | 42 | 102 |
| 200 | 2002 to 2018 | 10 | 42 | 102 |
| 125 | 2002 to 2012 | 9 | 44 | 102 |
| 125 | 2013 to 2022 | 9 | 48 | 104 |
| 250, 280, 300 | 2019 on | 10 | 39 | 100 |
| Montesa | ||||
| 315 | 1997 to 2004 | 10 | 40 | 100 |
| 4RT | 2005 on | 10 | 41 | 100 |
| Scorpa | ||||
| SY | 2002 to 2009 | 10 | 38 | 100 |
| SR and Twenty 250, 280 | 2014-2016 | 10 | 42 | 100 |
| SR and Twenty 125 | 2014-2016 | 9 | 48 | 103 |
| SC 250, 300 | 2017 to 2019 | 9 | 44 | 101 |
| SC 125 | 2017 to 2019 | 9 | 56 | 107 |
| SC 250, 300 | 2020 to 2022 | 9 | 42 | 100 |
| SCT/SCF 125-300 | 2023 to 2025 | 10 | 42 | 102 |
| SCF 125-300 | 2026 on | 10 | 40 | 101 |
| Sherco | ||||
| 200, 250, 290, 320 | 2002 to 2006 | 10 | 42 | 101 |
| 125 | 2002 to 2006 | 9 | 44 | 101 |
| 200, 250, 290, 300, 320 | 2007 to 2016 | 10 | 42 | 100 |
| 125 | 2007 to 2016 | 9 | 48 | 103 |
| 250, 300 | 2017 to 2019 | 9 | 44 | 101 |
| 125 | 2017 to 2019 | 9 | 56 | 107 |
| 250, 300 | 2020 to 2022 | 9 | 42 | 100 |
| ST-R ST-F 125-300 | 2023-2025 | 10 | 42 | 102 |
| ST-F 125-300 | 2026 on | 10 | 40 | 101 |
| TRS | ||||
| 250,280,300 | 2016 on | 10 | 40 | 100 |
| 125 | 2018 on | 9 | 48 | 104 |
| Vertigo | ||||
| All Models | 2016 on | 10 | 42 | 103 |
Found the sprocket sizes and chain length for your bike? Browse our trials bike front sprockets and trials bike rear sprockets, then explore our trials bike chains. Check the product’s model and year compatibility, sprocket tooth count, chain size and link length before ordering.
