TECH Suspension Rear Shock Springs

Springs to suit the TECH Suspension rear shock absorber (TJ2, TJ3 & TJ3GP) found on the:
GASGAS TXT 2023 onwards
TRS RR 2025
Electric Motion EPure 

The recomendations below may differ from what Tech and GasGas recomend but we're confident they are a good starting point. Very good riders who are hitting very large steps and drops may want to go to a stiffer spring than recomended, likewise if riding at higher speeds you may also want to go stiffer.

63.6N/mm spring is suitable for riders around 65kg, 10.3 Stone, 144lbs
68.7N/mm spring is suitable for riders around 73kg, 11.5 Stone, 160lbs
73.6N/mm spring is suitable for riders around 80kg, 12.6 Stone, 176lbs
78.5N/mm spring is suitable for riders around 87kg, 13.7 Stone, 192lbs
83.4N/mm spring is suitable for riders around 95kg, 14.9 Stone, 208lbs

2023 TXT125RACING comes as standard with the 68.7N/mm spring
2023 TXT250/280/300RACING & GP comes as standard with 73.6N/mm spring
2025 TRS RR come as standard with the 73.6N/mm spring

Note
When using 63.6N/mm spring (090741171 use with 7.5mm spacer: supersceded by F230025 longer 134mm spring so no spacer needed).
Supersceded again by F230021
When using 68.7N/mm spring (090761191) please use with 6mm spacer (042032060).
When using 73.6N/mm spring (090781211) please use with 4.5mm spacer (042032045).
When using 78.5N/mm spring (090801231 use a 3mm spacer : supersceded by F230024 and F230018 - longer 134mm spring so no spacer needed) 
When using 83.4N/mm spring (090821251) please use with 1.5mm spacer (042032015).

The different spacers are used to allow the 10mm maximum preload, the relavent spacer comes supplied with the spring.

Manual see here Tech Rear Shock Manual

These springs are roughly:
42.7mm inside diameter
60mm Outside diameter (depending on the spring rate)
125mm long (F230024 is 133mm long) (F230025 and F230018 are 134mm)