Yacugar Fork Springs / Progressive Fork Springs / KTM 390 Adventure '20-On
YACUGAR FRONT FORK SPRINGS / Progressive Fork Springs // For the KTM 390 Adventure '20-On
The stock WP Apex 43mm fork on the 390 Adv has rather soft 5.5 N/mm fork springs. Installing these two stage springs in your fork with their starting rate of 6.5 N/mm better supports the weight on the front of the bike while still providing good rider comfort. The gradual uptick in rate as the fork compresses drastically reduces nose dive and prevents blowing through the stroke too quickly while riding more aggressively off road.
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