The Shimano SH-RX800W is a high-performance gravel racing shoe built specifically for women, merging road shoe stiffness and weight with the walkability and durability of a mountain shoe. Rated 10/11 on Shimano's MTB stiffness index, the full carbon composite outsole delivers exceptional power transfer to the pedals — whether you're sprinting on tarmac or grinding through gravel.

Highlights

  • Carbon composite outsole: Rated 10 out of 11 on Shimano's MTB stiffness scale for maximum pedalling efficiency and minimal flex.
  • Single Boa IP1 dial with dual micro adjustment: Independently fine-tune mid and upper closure zones for a precise, secure fit on the fly.
  • Women's-specific last: Narrower profile and lower volume compared to unisex models for a natural, comfortable fit.
  • Synthetic leather and mesh upper: Breathable perforated construction moulds to the foot while resisting abrasion on rough terrain.
  • Heel Stabilizer: Cradles the heel to eliminate slipping and maintain efficient pedal contact under load.
  • Adaptable arch pads and antimicrobial insole: Anatomic support insole with Silvadur antibacterial technology keeps feet comfortable and fresh on long days.
  • Extended fore-aft cleat adjustment: 20mm adjustment range for optimal SPD cleat positioning and knee alignment.
  • Abrasion-resistant TPU lugs: Lightweight outsole lugs provide grip and durability when walking in the dirt.

Design & Construction

The Surround Upper pattern wraps the foot in a single-piece synthetic leather and mesh construction, balancing a secure hold with all-day comfort. A hook-and-loop strap at the metatarsal zone adds an additional adjustment layer for a customised fit. The Dynalast shape features an optimised toe-spring section that mirrors natural foot movement, reducing fatigue on extended gravel rides and bikepacking adventures.

Compatibility & Fit

The SH-RX800W is compatible with Shimano SPD 2-bolt cleats (not included). The carbon outsole features a 20mm extended fore-aft cleat adjustment slot for precise alignment. This listing is for the Navy colourway in EU size 38. Shimano's women's-specific last provides a narrower fit with lower overall volume than the unisex RX800 model — suited to riders with narrow to medium-width feet.

Shimano offers a limited warranty covering defects in materials and workmanship. For warranty support, return the item to Tune Cycles.
  • Carbon composite outsole rated 10/11 on Shimano's MTB stiffness index for maximum power transfer
  • Single Boa IP1 dial with dual micro adjustment for independent mid and upper zone tensioning
  • Women's-specific last — narrower profile and lower volume for a natural, precise fit
  • Breathable synthetic leather and mesh upper with perforated ventilation zones
  • Heel Stabilizer prevents slipping and maintains consistent pedal contact
  • Antimicrobial anatomic insole with Silvadur technology for long-ride freshness
  • 20mm extended fore-aft SPD cleat adjustment for personalised knee alignment
  • Lightweight abrasion-resistant TPU outsole lugs for confident walking off the bike
  • Hook-and-loop strap at metatarsal zone for additional forefoot security
ModelSH-RX800W
ColourNavy
SizeEU 38
Sole MaterialCarbon composite
Sole Stiffness Rating10/11 (Shimano MTB stiffness index)
Outsole LugsLightweight abrasion-resistant TPU
Upper MaterialSynthetic leather and mesh with perforated venting
Closure SystemSingle Boa IP1 dial with dual micro adjustment + hook-and-loop strap
Cleat CompatibilityShimano SPD (2-bolt), cleats not included
Fore-Aft Cleat Adjustment20mm extended range
Last ShapeDynalast (women's-specific, narrower/lower volume)
InsoleAnatomic with adaptable arch pads and Silvadur antimicrobial treatment
Intended UseGravel racing, cyclocross, gran fondo
SKU SHM-ESHRX800WCN01W38
Barcode # 4550170468972
Brand Shimano

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