31.6 Dropper Post Internal Routing 80mm Travel with 100mm Shim Adaptor

80mm Saddle Adjustment with a 31.6mm Shim Adaptor

This 31.6 dropper post internal routing setup combines a 27.2mm dropper seatpost with a 27.2 to 31.6mm shim adaptor. The adaptor measures 100mm long and allows the post to fit a compatible frame accepting a 31.6mm seatpost, where the frame manufacturer permits shim use. With 80mm of travel, you can lower your saddle for descents and raise it for seated pedalling.

For NZ riders moving between North Island bush tracks and South Island gravel routes, adjustable saddle height provides more room to move when the terrain changes. Check your frame's routing, insertion requirements and shim compatibility before fitting.

Key Features

• 31.6mm fit using the supplied adaptor: Includes a 27.2mm dropper post and a 27.2 to 31.6mm shim.
• 100mm-long shim adaptor: Adapts the post diameter to a compatible 31.6mm seat tube.
• 80mm travel: Adjust saddle height for climbs, descents and uneven sections.
• Internal cable routing: The operating cable connects at the base of the post and runs through a compatible frame.
• Sealed hydraulic mechanism: Uses cable actuation to control saddle height adjustment.
• 7050 aluminium alloy post: Finished in sandblasted black.
• Two-bolt saddle clamp: Suitable for round saddle rails and 7 × 9mm oval rails.
• Adjustable saddle angle: The saddle cradle adjusts from -5° to +18°.

Specifications for 31.6 Dropper Post with Internal Routing

• Frame seatpost size: 31.6mm when fitted with the supplied shim adaptor
• Dropper post diameter: 27.2mm
• Shim adaptor size: 27.2 to 31.6mm
• Shim adaptor length: 100mm
• Travel: 80mm
• Overall post length: 370mm
• Post minimum insertion depth: 100mm
• Cable routing: Internal
• Mechanism: Sealed hydraulic system with cable actuation
• Post material: 7050 aluminium alloy
• Cable length: 150cm
• Supplier-listed post setup weight: 480g + 100g; shim weight not specified
• Saddle cradle angle: -5° to +18°
• Saddle clamp: Two-bolt design
• Saddle rail compatibility: Round rails and 7 × 9mm oval rails
• Post finish: Sandblasted black
• Listed post applications: Compatible mountain bikes, gravel bikes, cyclocross bikes and road bikes

Benefits

1. Fit a compatible 31.6mm frame: The supplied shim adapts the 27.2mm post for frames that accept this arrangement.
2. More room on descents: Lowering the saddle gives you extra space to shift your body over uneven ground.
3. Adapt to mixed NZ terrain: Change saddle height as your ride moves from gravel climbs to rougher descending sections.
4. Set your saddle position: Use the two-bolt clamp and adjustable cradle angle to fine-tune saddle placement.

Common Questions

• Q: Is the dropper post itself 31.6mm in diameter?
  A: No. The post measures 27.2mm and comes with a 27.2 to 31.6mm shim adaptor for use in a compatible 31.6mm frame.
• Q: How long is the shim adaptor?
  A: The supplied shim adaptor is 100mm long.
• Q: Will this setup fit my bike?
  A: Your frame must accept a 31.6mm seatpost, permit a shim adaptor and support internal dropper cable routing. Check insertion depth, clearance for the base actuator and cable, and your required saddle height before ordering.
• Q: What is the minimum insertion depth?
  A: The post requires at least 100mm of insertion. Follow the post, shim and frame installation requirements, including any greater minimum insertion depth. The shim's 100mm length does not replace these requirements.
• Q: How much travel does it provide?
  A: The post provides 80mm of saddle height adjustment. Its overall length is 370mm.
• Q: Is it cable-operated or hydraulic?
  A: A cable operates the sealed hydraulic mechanism. The cable connects at the bottom of the post and routes internally through a compatible frame.
• Q: Which saddle rails fit the clamp?
  A: The clamp is listed as suitable for round rails and 7 × 9mm oval rails. Check your saddle manufacturer's clamp requirements before installation.
• Q: Can I use it on a gravel bike?
  A: Yes, if the frame accepts this post and shim arrangement and has suitable internal routing and clearance. Check remote compatibility with your handlebars, especially with drop bars.

Summary

This internally routed dropper setup pairs an 80mm-travel 27.2mm post with a 100mm-long adaptor for compatible 31.6mm frames. It gives NZ riders adjustable saddle height for changing terrain. Before ordering, confirm that your frame permits shim use and provides the required insertion depth and internal cable clearance.