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Seat BigBum
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Home / Positz Bicycle Parts and Accessories

Seat BigBum

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The Positz Big Bum Oversize Bike Seat is designed for the everyday person seeking extra comfort from their bike seat. The soft and comfortable design helps add some cushioning to the trunk so that you can enjoy riding the bike – rather than worry all the time how sore you are!

Unlike the slim bike and aerodynamic seat the Tour de France professionals would use, this saddle is BIG… just the way you want it.

  • Dual contoured panel for anatomic fit on the bike
  • Dual base layer plate with air channel holes for additional natural suspension
  • Synthetic cover for easy cleaning
  • Easy to install with the Positz twin-rail saddle clamp (included)
  • Colour: All black
  • Unisex fit
  • Genuine Positz product: Designed in Australia, made in Taiwan

Item dimensions:

  • Length (nose to end): 25cm
  • Width (side to side): 32cm
  • Height (excluding clamp and rails): 5cm
  • 2-rail standard round 7mm (diameter) x 38mm (inside to inside) x 52mm (outside to outside)
  • Standard steel saddle clamp fits 22.2mm diameter seat post
  • Total unit weight 1250g

Included:

  • 1x Positz BigBum Oversize Bike Seat
  • 1x Positz Saddle Clamp
Weight 1450 g
Brand

Positz

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Positz is a local brand that specialises in providing high quality bicycle spare parts and accessories. As one of the leading cycling brands in Australia, we deliver affordable, durable and reliable products. Positz is a registered trademark and must not be used without express written consent. All content copyright 2026 © Positz™

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