Giant PRE Kid Bike Assembling Manual

Step A: Headset Installation

Step 1: Insert the fork into the head tube.

Step 2: Place the headset cap onto the fork.

Step B: Handlebar Stem Attachment

Step 1: Align the handlebar stem with the fork steerer tube.

Step 2: Insert the bolts (x4) through the stem and into the steerer tube.

Step 3: Tighten the bolts using a 4mm hex wrench.

Step C: Handlebar Alignment

Step 1: Position the handlebar in the stem.

Step 2: Ensure the handlebar is centered and straight.

Step 3: Check the alignment marks on the stem and handlebar.

Note: Do not overtighten bolts. Refer to the manual for specific torque values.

Step D: Securing the Handlebar

Step 1: Insert bolts through the stem faceplate and into the handlebar.

Step 2: Tighten the bolts evenly using a 4mm hex wrench.

Step E: Final Handlebar Tightening

Step 1: Using a 4mm hex wrench, tighten the bolts in a star pattern.

Step 2: Rotate each bolt 180 degrees at a time, alternating between bolts.

Step 3: Ensure all bolts are tightened to the specified torque (5.2 Nm).

Note: Listen for a "click" sound from the torque wrench to confirm correct torque.

Step F: Stem Clamp Check

Ensure the stem clamp is properly secured around the fork steerer tube.

Step G: Torque Wrench Application

Step 1-4: Following the indicated sequence, tighten the stem bolts using a torque wrench to 5.2 Nm.

Note: Make sure all bolts are tightened to the correct torque by listening for clicking sounds from the torque wrench.

Step H: Steering System Adjustment

Step 1: Rotate the fork 360 degrees to ensure smooth steering.

Step 2: Tighten the headset top cap bolt using a 5mm hex wrench.

Step 3: Tighten the stem bolts using a 4mm hex wrench, rotating each 180 degrees x 3.

Step J: Final Check of Handlebar Alignment

Ensure the handlebar is straight and centered with the front wheel.

Step K: Repeat Torque Wrench Application

Repeat the torque wrench application process for the stem bolts as described in Step G.

Step L: Seat Post Insertion

Step 1: Insert the seat post into the seat tube.

Step 2: Adjust the seat height as needed.

Step M: Seat Clamp Tightening

Step 1: Tighten the seat clamp bolt using a 5mm hex wrench.

Step 2: Ensure the seat post is securely fastened.

Step N: Seat Height Adjustment and Safety Check

Seat Height: Adjust the seat height so that the child can comfortably place their feet flat on the ground while seated. The recommended inseam is approximately 30cm (1 foot).

Safety Check: Ensure the child's feet can reach the ground for stability.

Step O: Saddle Alignment

Ensure the saddle is level and properly aligned.

Step P: Final Bike Check

Perform a final check of all components to ensure they are securely fastened.

Step Q: Rear Wheel Check

Step 1: Ensure the rear wheel is properly secured.

Step 2: Check the wheel nuts using a 15mm box wrench.

Step R: Front Wheel Check

Step 1: Ensure the front wheel is properly secured.

Step 2: Check the wheel nuts using a 4mm hex wrench.

Step S: Pedal Check

Ensure the pedals are securely attached and spin freely.

Step T: Tire Inflation

Inflate the tires to the recommended pressure: 35 P.S.I (240KPa) (2.4BAR).

Step U: Stability Test (Vertical)

Test: Gently push the bike down from a height of 30cm (1 foot).

Listen: Listen for clunking or rattling noises that may indicate loose parts.

Step V: Stability Test (Lateral)

Test: Gently push the bike sideways.

Listen: Listen for clunking or rattling noises that may indicate loose parts.