Husqvarna 125 TC Chain Size and Sprocket Teeth
GarageDex's manufacturer-catalogue data shows the 2024 Husqvarna 125 TC uses a 520 chain with 13-tooth front and 51-tooth rear sprockets from the factory. (118 links) Chain and sprocket sizing varies by year - see the table for each range.
Chain and sprocket fitment by year
| Years | Chain | Links | Front teeth | Rear teeth |
|---|---|---|---|---|
| 2024 | 520 | 118 | 13 (JTF1901SC) | 51 (JTR897SC) |
| 2022-2023 | 520 | 118 | 13 (JTF1901SC) | 51 (JTR897SC) |
| 2020-2021 | 520 | 118 | 13 (JTF1901SC) | 51 (JTR897SC) |
| 2018-2019 | 520 | 118 | 13 (JTF1901SC) | 50 (JTR897SC) |
| 2014-2017 | 520 | 118 | 13 (JTF1901SC) | 50 (JTR897SC) |
Part numbers in parentheses are the manufacturer's stock-gearing sprocket codes, useful for matching a replacement.
Chain and sprockets for the Husqvarna 125 TC
Match the pitch (520) and tooth counts in the table - chain and sprockets are a matched set, and a mismatched pitch will not fit the sprockets at all.
As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.
Frequently asked
What chain size does a Husqvarna 125 TC use?
GarageDex's manufacturer-catalogue data shows the 2024 Husqvarna 125 TC uses a 520 chain with 13-tooth front and 51-tooth rear sprockets from the factory. (118 links) Chain and sprocket sizing varies by year - see the table for each range.
What is the stock gearing on a Husqvarna 125 TC?
13-tooth front and 51-tooth rear from the factory, part numbers front JTF1901SC, rear JTR897SC.
What changes if I go +2 teeth on the rear sprocket?
Going up 2 teeth on the rear sprocket (or down 1-2 on the front) lowers the gearing: quicker acceleration off the line, but a lower top speed, and the chain usually needs to be 1-2 links longer to keep enough wrap on the front sprocket - a shop or the sprocket's fitment chart will confirm the exact link count for that combination. This is a generic mechanical rule, not a claim about this specific model's aftermarket options.
How many links does a Husqvarna 125 TC chain have?
118 links at stock length and gearing, per the manufacturer catalogue.
Other Husqvarna models
Source: JT Sprockets - Online Catalogue, a chain and sprocket manufacturer's own application catalogue. Chain and sprocket sizing is factory-stock as JT publishes it - aftermarket gearing changes (see the FAQ) are not reflected here.