RockShox SID C1 CSU
Best performance upgrade for serious mountain bike enthusiasts.
This replacement crown, steerer, and upper tube assembly restores structural integrity to high-performance suspension systems. Designed for precision handling and stiffness, it provides a direct factory-spec solution for riders looking to refresh their front-end performance without replacing the entire fork.
$370.00
More SID options
RockShox SID Fork
$1099.00
RockShox SID SL Select Fork
$759.00
SID/Reba Solo Air CSU
$337.00
RockShox SID SL D1 Lower Leg
$320.00
RockShox SID
$1099.00
RockShox SID Charger Race Day
$1099.00
RockShox SID SL Flight Attendant
$989.00
RockShox SID Lower Legs
$320.00
RockShox SID SL Fork
$989.00
RockShox SID SL
$989.00
RockShox SID SL Select
$759.00
RockShox SID SL Flight Attendant
$1499.00
RockShox SID SL Select
$689.00
RockShox SID SL Race Day 2
$899.00
RockShox SID SL Race Day 2
$899.00
RockShox SID SL Race Day 2
$899.00
RockShox SID SL Select
$689.00
RockShox SID Select
$869.00
RockShox SID SL Select
$689.00
RockShox SID SL Race Day 2
$899.00
RockShox SID SL Select
$759.00
RockShox SID SL Remote E1
$989.00
RockShox SID Lower Leg
$292.00
RockShox SID Lower Leg
$320.00
RockShox SID SL Crown/Steerer/Uppertube
$370.00
RockShox SID SL D1 CSU
$370.00
RockShox CSU for SID
$370.00
RockShox Lower Leg for SID SL
$320.00
RockShox SID Lower Leg
$320.00
RockShox SID D1 Lower Leg
$320.00
RockShox SID SL Remote E1
$989.00
RockShox SID SL
$989.00
RockShox SID SL Select E1
$759.00
RockShox SID SL Race Day 2
$899.00
RockShox SID SL Race Day 2
$899.00
RockShox SID Select
$869.00
RockShox SID Lower Leg
$320.00
RockShox SID SL Damper
$230.00
RockShox SID SL Select
$759.00
RockShox SID SL Remote E1
$989.00
RockShox SID SL E1
$989.00
RockShox SID SL Select
$759.00
RockShox SID SL E1
$989.00
RockShox SID SL Remote E1
$989.00
RockShox SID Damper
$230.00
RockShox SID Remote
$1099.00
RockShox SID SL Select RL Suspension Fork
$759.00
RockShox SID CSU
$264.99
RockShox SID Suspension Fork
$1099.00
RockShox SID SL Suspension Fork
$989.00
RockShox SID Suspension Fork
$1099.00
RockShox SID Suspension Fork
$1099.00
RockShox SID SL Select Suspension Fork
$759.00
RockShox SID Select+ Fork / SIDLuxe Select+ Shock
$940.00
Who it's for
- XC racers and aggressive trail riders seeking maximum control.
- Performance-focused riders upgrading or replacing a high-end fork.
- Riders who prioritize a long-lasting and resilient front suspension component.
Who should skip it
- Budget-conscious riders or those with less expensive existing forks.
- Weight-weenie XC racers prioritizing the absolute lightest setup.
- Riders without a compatible RockShox SID 35mm lower assembly.
Performance breakdown
Structural Rigidity
High-grade aluminum construction minimizes flex during aggressive cornering and technical descents.
Installation Compatibility
Factory-spec tolerances ensure a seamless, hassle-free fit with existing SID chassis.
Weight Efficiency
Optimized material distribution keeps the front end light for climbing performance.
Steering Precision
Tapered steerer design provides the responsive feedback required for technical trail riding.
Durability
Built to withstand the repeated impacts and stresses of competitive cross-country racing.
Geometry Retention
Maintains exact factory specifications to preserve the bike's intended handling characteristics.
Key Specs
Weight
1279.13 grams
Material
Aluminum
Wheel Size
29 inches
Stanchion Diameter
35 mm
Travel
100-120 mm
Offset
44 mm
Steerer Tube
Tapered
Spring Type
Air
Crown Type
Single Crown
Know before you buy
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