Fast Suspension SC4 Fork Damper Cartridge - Upgrade Kit

Installation :
Terms & conditions


Why the SC4 cartridge is your best ally?

Simply put, it’s down to its specific conception with 3 independent compression ways, inspired from our up kit.
Low speed for comfort on small hits, medium speed to manage diving and balance of the bike and finally a circuit dedicated to high speed/impacts to flatten the ground.

The rebound is externaly adjustable for the low speed. The high speed rebound shims stack will be set according to your expectations.

+ 3 independent compression circuits
+ The only kit to use hydraulics to manage the diving and balance of the bike
+ New high speed valving to flatten the bumps
+ More grip
+ Comfort and endurance
+ 100% sealed system with IFP

The SC4 cartridge is:

  • An unique conception with 3 independent ways
  • Custom Aeronautical 7075 T6 alloy
  • Performing, durable, consistent


for YARI forks from 2017 onwards.

for REVELATION forks 35mm from 2018 onwards. 

for LYRIK forks 35mm

for PIKE forks 35mm from 2016 onwards. 

for ZEB forks 38 mm

for FOX 36 forks 35mm from 2015 onwards. 

for FOX 38 forks


for MARZOCCHI Z1 from 2019 onwards.

As our SC4 cartridge is a made-to-measure product, assembly is carried out at the time of ordering.

The usual processing time is therefore eastimated 3-4 week.

We use trusted third party logistics providers to deliver our goods. If you want to see your delivery terms, please visit our shipping information page before you place your order.
Dispatch times may vary according to availability and any guarantees or representations made as to delivery times are subject to any delays resulting from postal delays or other occurrences beyond our control for which we will not be responsible. Please see our shipping information page for further information.

Delivery Method Below $65 Above $65 Delivery Time
Self-Collection FREE FREE N/A
Courier Delivery  $1.98 FREE 1-3 Business Days

Delivery time is based on date of courier pick up, not date of order.


  1. Packing and processing would take an estimate of 1-2 business days. A tracking will be updated once your order is processed and ready for courier pickup. Click "view / track your order" in the order confirmation email.
  2. Pick up by courier is done during business days. (Before 1pm). | Exclude public holidays 
  3. Delivery is done between Monday - Friday 9am - 7pm, Sat 9am - 1pm.  
  4. No delivery to restricted Areas such as: 1.Changi Airport / 2.Alps Ave / 3.Sentosa / 4.Jurong Island /5.Army Camps / etc...
  5. No changes to delivery address can be made after order is processed.
  6. Delivery time may be delayed due to unforseen operations issues. (Vehicle breakdown, festive season resulting in backlog, etc...)
  7. Compensation is capped at $100 for any lost or damaged parcel where the liability is due to our delivery partners. *Discretion of our delivery partner.
  8. Parcels exceeding 160 cm (L+B+H) or 15 kg will incurr additional charges. Alternatively, you may choose to self collect. Customers will be notified accordingly.
For delivery locations outside of Singapore, please contact us. (Applicable to certain products only) 
Fast Suspension SC4 Fork Damper Cartridge - Upgrade Kit
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