The SR Suntour Durolux38 EVO (SF25-DUROLUX38-Boost) is a 29" suspension fork with 170mm of travel and an EQ air spring, for trail and all-mountain riding.

  • 170mm of travel on 29" wheels
  • 15x110mm Boost thru-axle: a stiffer, more secure front-wheel connection than a quick release
  • RC+ cartridge, semi-open bath damper
  • Tapered steerer
  • 38mm alloy stanchions
  • Team Grey Gloss

SR Suntour suggests 15-20% sag for forks under 120mm of travel and 25-30% for longer-travel forks.

Fit and compatibility

Check it against your bike before you order: wheel size (29"), front hub (15x110mm Boost thru-axle) and head tube (Tapered). Brake mount isn't stated for this model, so ask us to confirm before you buy.

Sourced from SR Suntour's own SF25-DUROLUX38-Boost product page (https://www.srsuntour.com/products/fork/SF25-DUROLUX38-Boost-8051.html), confirming wheel size, axle standard, steerer type and travel exactly as listed above.

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

  • 170mm of travel on 29" wheels
  • 15x110mm Boost thru-axle: a stiffer, more secure front-wheel connection than a quick release
  • RC+ cartridge, semi-open bath damper
  • Tapered steerer
  • 38mm alloy stanchions
  • Team Grey Gloss
Wheel size29"
Travel170mm
Axle15x110mm Boost thru-axle
SpringEQ air
DamperRC+ cartridge, semi-open bath
SteererTapered
Stanchion38mm alloy
ColourTeam Grey Gloss
Model codeSF25-DUROLUX38-Boost
Supplier codeS226G
SKU BPW-S226G
Model # S226G
Brand SR Suntour