The SR Suntour Raidon34-JR SF25 is a 24" suspension fork with 120mm of travel and an EQ air spring, for kids' mountain bikes.

  • 120mm of travel on 24" wheels
  • 15x110mm Boost thru-axle, tool-type: a stiffer, more secure front-wheel connection than a quick release
  • 2CR damper
  • Tapered 1 1/8" to 1.5" steerer
  • Post mount disc brake

2CR damping gives two compression positions (firm and open) with low-speed rebound adjustment. The EQ air spring is SR Suntour's Equalizer system: it balances the positive and negative air chambers, so setting sag is a matter of pumping it to your weight. It has 34mm alloy stanchions, magnesium lowers, a 272mm steerer tube and 44mm offset. Maximum rotor size: 203mm (post mount, 180mm direct). Largest suggested tyre: 24" x 2.6" (65-507).

Fit and compatibility

Check it against your bike before you order: wheel size (24"), front hub (15x110mm Boost), head tube (Tapered 1 1/8" to 1.5") and brake (Post mount). The steerer tube is 272mm long, so check it covers your head tube and stem stack.

Not sure it suits your bike? Send us the make, model and year, plus your head tube, hub and brake details, and we'll check the fit before you order.

SR Suntour warranty. SR Suntour warrants its products against defects in materials and workmanship for between 6 and 24 months from the date of first retail purchase. The period depends on the product and is set out in SR Suntour's warranty document. SR Suntour's remedy is repair or replacement, at its discretion.

Not covered: normal wear, including oil, dust and oil seals, o-rings, bushings, bearings, stanchion tubes and cartridges; damage from crashes, misuse, incorrect installation or missing maintenance; modified parts; cosmetic marks; and stunt riding or racing. SR Suntour asks for a fault to be reported within 10 days of finding it, with photos, the serial number and the service history.

How to claim: return the item to Tune Cycles with your proof of purchase and we'll manage the claim.

Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.

  • 24" wheels, 120mm travel
  • 15x110mm Boost thru-axle, tool-type
  • 2CR damper
  • EQ air spring
  • Tapered 1 1/8" to 1.5" steerer
  • Post mount brakes
  • Gloss Black
Wheel size24"
Travel120mm
Axle15x110mm Boost thru-axle, tool-type
SpringEQ air
Damper2CR
SteererTapered 1 1/8" to 1.5"
Steerer length272mm
Brake mountPost mount
Max rotor203mm (post mount, 180mm direct)
Offset44mm
Max tyre24" x 2.6" (65-507)
Stanchions34mm alloy
LowersMagnesium
ColourGloss Black
Model yearSF25
Part codeS193
SKU BPW-S193
Model # S193
Brand SR Suntour