The SR Suntour Disc X-1 is a reliable entry-level 29er suspension fork suited to hardtail mountain bikes and commuters requiring disc brake compatibility and 100mm of coil-sprung travel. The lockout function lets you firm up the fork for climbing or road sections, making it a practical choice for mixed-terrain use.

  • 100mm travel — capable on trail, comfortable on commutes
  • Coil spring — consistent, maintenance-friendly suspension feel
  • Remote lockout (RLO) — firm up the fork on climbs without leaving the bars
  • Disc brake compatible — works with standard post-mount disc calipers
  • QR (quick-release) axle with 1-1/8" straight steerer for broad compatibility

The 32mm stanchion diameter provides a balance of stiffness and weight for this fork class. The coil spring mechanism is low-maintenance and consistent across a wide temperature range, making it a dependable choice for year-round riding. The straight 1-1/8" steerer is compatible with all standard threadless headsets.

Compatible with 29er wheels. Requires a 1-1/8" threadless headset. Axle-to-crown length and offset should be verified for frame compatibility. Colour: black.

Warranty claims for this product should be directed to Tune Cycles. Return the item to us with proof of purchase and we will manage the warranty process with the brand on your behalf.
  • 100mm coil-sprung travel — versatile for trail and commuter use
  • Remote lockout (RLO) — lock out suspension without taking hands off bars
  • Disc brake compatible — suits standard post-mount disc calipers
  • 32mm stanchions — solid, reliable for this fork class
  • QR axle and 1-1/8" straight steerer — broad frame and headset compatibility
SpecificationValue
Wheel Size29"
Travel100mm
Spring TypeCoil
Stanchion Diameter32mm
DamperRLO (Remote Lockout)
Axle StandardQR (Quick-Release)
Steerer1-1/8" straight, threadless
Brake MountDisc (post mount)
ColourBlack
SKU BPW-S133A
Model # S133A
Barcode #
Brand SR Suntour