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KTM rear spring - $40
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It is heavier than the factory spring. It is for a 225lb rider with gear.
Dimensions break down as:
• 59: 59 mm Inner Diameter
• 225: 225 mm Free Length
• 727578: A progressive spring rate transitioning from 72 N/mm (initial stroke) to 75 N/mm (mid-stroke) to 78 N/mm (final anti-bottoming rate).
Model and Year Fitment
This specific 59x225 mm spring configuration is designed exclusively for KTM models equipped with WP XPLOR linkless PDS (Progressive Damping System) rear shocks.
It explicitly fits the following models across 2017 to 2023 model years:
• KTM EXC / EXC-F (All displacements from 150 to 500)
• KTM XC-W / XCF-W (All displacements from 125 to 500)
• KTM Six Days Editions (Using the PDS rear shock system)
(Note: This spring also carries over to exact sister-brand models using the exact same linkless WP XPLOR rear shock setup, including Husqvarna and GasGas enduro models built between 2017 and 2023).