Humanize Design:
Adjusted to fit most surfboards,
Clever design prevents your bike and board from rubbing,
3Fits surfboards up to 8" (20.3cm),
Can mount to seat posts 25mm to 32mm;
Elastic rope ensures the board stays in the rack,
Equipped to hold a weight capacity of up to 20kgs

HOW TO INSTALL:
Step 1:Install Position 2 on Position 1, and Position 4 on Position 3.
Step 2: Insert Positions 5 in Position 7, adjust the correct angle and lock with screws. Similary, insert the Positions 6 in Position 8, adjust the corresponding angle and lock it with screws.
Step 3: Install Position on the steel tube under the bicycle seat, wrao the steel tube with Position 10 and tighten it with screws.

Notes:
1. Please allow 1-10mm error due to manual measurement, thanks for your understanding!
2. Item color may show slight aberration due to different shooting light and monitor display.

Specifications:
Material: aluminum + soft foam padded
Weight Capacity: 20kg
Tube Diameter: 1.1inches
Distance from Bike to Rack:7.87inches
Product Dimensions: 15.7-35.5 * 5.9 * 21.6 inches (L*W*H)

Package included:
1 * Surfboard Bicycles Rack