Spring Calculator
Source: tech.ridefox.com/bike/general-info/918/spring-calculator-all-rear-shock-spring-information · last verified 2026-05-19
Pick a shock family, eye-to-eye, and travel; the calculator returns the shortest and longest TLG springs that fit, and lists every catalog spring in that window. The data is transcribed verbatim from FOX's page — readers needing a row not present here go to the source.
Shortest TLG
3.947in / 100.2mm
Longest TLG
4.485in / 113.9mm
Catalog springs in this window
| PN | Rate (lb/in) | ID (in) | Travel | TLG (in) | Family |
|---|---|---|---|---|---|
| 803-04-343 | 300 | 1.385 | 2.4in / 61mm | 4.280 | SLS Matte Black |
| 803-04-344 | 325 | 1.385 | 2.4in / 61mm | 4.410 | SLS Matte Black |
| 803-04-284 | 350 | 1.385 | 2.4in / 61mm | 4.380 | SLS Matte Black |
| 803-04-130 | 250 | 1.385 | 2.5in / 64mm | 4.285 | Steel |
| 803-04-131 | 300 | 1.385 | 2.5in / 64mm | 4.344 | Steel |
| 803-04-710 | 350 | 1.385 | 2.45in / 62mm | 4.381 | Steel |
Mirrored data — at a glance
Fitment tables
4 / shock families
- 2022-2027 DHX / DHX Live Valve Neo, 2027 DHX2
- 2021-2025 DHX2
- 2016-2020 DHX2
- All VAN / Bomber CR
Catalog springs
13 / PN rows
1.385in-ID Matte Black SLS @ 2.4in / 61mm travel (300-550 lb/in) plus a 1.385in-ID Steel headline run (250-350 lb/in). FOX's full catalog covers additional travel and ID combinations.