Can I put the new Blue Crush lowers on my older SID? No. SID’s new lowers are specific to 2024 SID forks. However, SID SL’s new blue lowers WILL fit on the old SID SL. Related articles Will SIDMan get an updated blue for his wardrobe? Why use “Heavy” oil in our lightest fork? Is the SID fork’s Rebound Knob still able to adjust the SIDLuxe Rebound adjuster? What is the weight difference between the 2021 and 2024 SID/SID SL models? How do the Charger XC and Rush XC differ from Charger Race Day 2?