VEVOR Kids Bicycle TQ1660 User Manual - Installation & Maintenance Guide

Introduction

Illustration of the VEVOR Kids Bicycle, Model TQ1660, showing its overall structure including wheels, frame, handlebars, seat, basket, and training wheels. Labeled "Photo for reference".

This is the original instruction. Please read all manual instructions carefully before operating. VEVOR reserves a clear interpretation of our user manual. The appearance of the product shall be subject to the product you received. Please forgive us that we won't inform you again if there are any technology or software updates on our product.

Correct Cycling Posture

Illustration depicting correct cycling posture. It shows three figures on bicycles with a measurement indicating a minimum distance of 2.54 cm (≥2.54cm) between the saddle and the ground.

Sit on the bicycle saddle.
Keep feet shoulder-width apart.
Ensure no part of the body touches the vehicle during cycling.
Maintain a distance greater than 2.54 cm between the saddle and the ground to ensure safety during sudden stops.

⚠️ WARNING:

For your child's safety, observe the following warnings:

Assembly and adjustments must be performed by adults. Keep children away from moving parts.
Children must ride under adult supervision.
This bicycle is designed for children and must not be ridden on public roads or used with tools.
Children must wear helmets while riding.
Avoid riding on uneven or sloped surfaces.
Inspect the bicycle before each use to ensure safety.

Age recommendations: 14-inch models for ages 3–6; 16-inch models for ages 4–8; 18-inch models for ages 5–10.

Usage Precautions

Adjust the seat and wheels to the appropriate height before use (see "Installation Instructions").
Inspect the bicycle before each ride.
Maintenance and repair procedures are similar to adult bicycles.
Do not use the bicycle if brake cables are detached; repair first.
Only guardians or professionals should perform repairs. Children must not touch chains, chainrings, or sprockets. Use correct specifications when replacing fasteners.

Part List

Illustration of the VEVOR Kids Bicycle with numbered components corresponding to the parts list table. Labeled "Products subject to the actual, the picture is for reference only."

Number	Name	Quantity	Number	Name	Quantity
1	handlebar	1	8	pedal	2
2	bell	1	9	crank	2
3	brakelever	2	10	training wheels	2
4	saddle	1	11	chain cover	1
5	front fender short	1	12	rear fender long	1
6	caliper brake	1	13	Baby chair	1
7	front wheel	1	14	windmill	1

Common accessories: outer tire, inner tire, brake pads. The form of each model is different, The packing list shall prevail.

Installation Steps

1. Training Wheels: Installation, Adjustment, Removal (Fig. 1)

Diagram showing the installation of training wheels. It depicts the rear axle with a limit plate, training wheel bracket, washer, and nut being attached.

Installation: Remove the outer nut and washer from the rear axle. Attach the limit plate, training wheel bracket, washer, and nut in sequence. Tighten the nut (torque ≥30 N·m).
Adjustment: Loosen the outer nut to adjust the bracket height for balance, then retighten (torque ≥30 N·m).
Removal: Remove the outer nut, washer, bracket, and limit plate.

2. Front Caliper Brake & Front Fender Installation (Fig. 2)

Diagram illustrating the installation of the front caliper brake and front fender. It shows how the brake caliper, curved washer, fender, flat washer, and locknut attach to the fork.

Attach the brake, insert the curved washer (curved side facing the fork), then mount the fender with a flat washer and locknut (torque ≥6 N·m). Note: The shorter fender is for the front.

3. Front Wheel Installation (Fig. 3)

Diagram illustrating the installation of the front wheel. It shows the front fork with the wheel, safety hook, washer, and nut being attached.

Insert the front wheel (tire direction matching the rear wheel) into the fork. Attach the safety hook, washer, and nut. Center the wheel between fork legs and tighten (torque ≥18 N·m).

4. Basket Installation (Fig. 4)

Diagram illustrating the installation of the bicycle basket. It shows the basket stand attaching to the handlebars/frame with screws and nuts.

Secure the basket to the bracket using screws, nuts, washers, and clamp plates. Skip if no basket is included.

5. Handlebar Installation (Fig. 5)

Diagram illustrating the installation of the handlebar stem. It shows the stem inserted into the fork tube, with the stem bolt and handlebar bolts being tightened.

Insert the stem into the fork tube and adjust to rider height. Tighten the stem bolt (torque ≥18 N·m). Ensure the stem is inserted past the safety line. Align the handlebar vertically and tighten the four bolts diagonally (torque ≥15 N·m).

6. Pedal Installation (Fig. 6)

Diagram illustrating the installation of the pedals. It shows the right pedal (R) threading clockwise and the left pedal (L) threading counterclockwise onto the crank arms.

The right pedal (marked "R") threads "clockwise" onto the right crank. The left pedal (marked "L") threads "counterclockwise" onto the left crank. Ensure both are fully tightened.

7. Saddle Installation (Fig. 7)

Diagram illustrating the installation of the saddle. It shows the seat post inserted into the frame, with the saddle nut and clamp being tightened.

Insert the seat post into the frame, adjust height, and tighten the clamp (torque ≥15 N·m). Ensure the safety mark is hidden. Tighten the nut with tools.

8. Rear Fender Installation (Fig. 8)

Diagram illustrating the installation of the rear fender. It shows the fender connector, flat washer, nylon locknut, and fixed bolt attaching the fender to the chainstay.

Attach the rear fender to the chainstay using screws, flat washers, and nylon locknuts (torque ≥6 N·m). Note: The longer fender is for the rear.

9. Caliper Brake Adjustment:

Diagram illustrating caliper brake adjustment. It shows the spring, brake pad, hollow screw, adjustment nut, and cable anchor bolt involved in adjusting the brake gap.

If the gap between the brake pads and the rim is too large, unscrew the hollow screw and tighten the adjustment nut. Conversely, if the gap is too small, tighten the hollow screw (see Section 10 of the Maintenance Guide for details). If the brake pads are biased to the left, gently tap the left side of the spring with a steel rod (or tap the right side if biased to the right) to equalize the distance between the rim and both brake pads.

10. Install the ribbon and windmill

Diagram illustrating the installation of the handlebar ribbon and windmill. It shows the ribbon inserted into the handlebar grips and the windmill assembly with its buckle.

Insert the ribbon into the handlebar cover, assemble the windmill according to the diagram first, and after assembly, install the lower buckle onto the handlebar.

11. Use tools to remove the screw washers. (Fig. 11)

Diagram illustrating the installation of the doll chair. It shows the bracket, rear fender, fender connector, fork tube, and doll chair positioning block and slot.

Install the doll chair bracket and rear fender. Pass the screws through the bracket, fender connector, arc washer, fork tube, washer, and then secure with a nut and tighten.
Install the doll chair by inserting the positioning block into the positioning slot and use tools to tighten the two screws.

Maintenance Tips

When a new bike is used for about two weeks, it is necessary to readjust the rotating front axle, rear axle, center axle and wheels to maintain normal operation.
Lubricate moving parts regularly with grease to extend lifespan. Disassemble and clean the entire bike every six months; regrease moving parts.
Painting parts: The surface should not be wrapped in plastic bags and cloth. Do not wipe with wet cloth, so as to avoid friction loss of light, foaming and peeling. In case of luster decline, you can choose high-quality car wax to wipe. Add light.
Electroplating parts: If the surface is found to be yellowish-brown mesh, neutral oil or sewing machine oil can be used to wipe frequently to prevent the expansion of the mesh.
Loose Headset: Loosen the headset locknut and remove the washer. Adjust the upper race to minimize bearing gap. Finally, reinstall the washer and tighten the locknut.
Loose Bottom Bracket: Loosen the left-side locknut and remove the washer. Then, adjust the bottom bracket cup to minimize bearing gap. Finally, reinstall the washer and tighten the locknut.
Front Axle Adjustment: If the front axle is loose or overtightened, it may affect operation. To adjust: 1. Loosen the nut on one side of the front axle. 2. Use a wrench to adjust the tension bolt, ensuring the wheel is centered between the front fork legs. 3. Tighten the nut.
Rear Axle Adjustment: 1. Loosen the left nut of the rear axle. 2. Adjust the axle to minimize the gap between the axle and bearings. 3. Center the wheel between the chainstay legs and tighten the nut. Ensure the chain tension is appropriate.
Chain Slippage: 1. Check chain tension. If it is too loose, loosen the rear axle nuts and push the wheel backward to tighten the chain. 2. Inspect chainring alignment. If warped, adjust using a wooden mallet.
Caliper Brake Adjustment: Minor adjustments: Loosen the adjustment nut on the brake arm, adjust the hollow screw to maintain a small gap between brake pads and rim, then tighten the nut. Major adjustments: Loosen the cable anchor bolt, tighten or loosen the cable, then retighten the bolt. Replace brake pads if worn.
Regular Checks: Periodically inspect brakes, tires (pressure), and handlebars.
Seat Adjustment: 1. Loosen the seat clamp nut, adjust the seat to the desired position, then tighten the nut. 2. If the seat wobbles laterally, secure the pivot nut.

Manufacturer and Importer Information

Manufacturer: Xingtai Tianqiu Children Articles co.ltd

Address: Hegumiao industrial zone number 4, pingxiang county Xingtai city, Hebei province, China

Imported to AUS: SIHAO PTY LTD, 1 ROKEVA STREET EASTWOOD NSW 2122 Australia

Imported to USA: Sanven Technology Ltd. Suite 250, 9166 Anaheim Place, Rancho Cucamonga, CA 91730

EU Representative: E-CrossStu GmbH, Mainzer Landstr.69, 60329 Frankfurt am Main.

UK Representative: YH CONSULTING LIMITED. C/O YH Consulting Limited Office 147, Centurion House, London Road, Staines-upon-Thames, Surrey, TW18 4AX

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KIDS BICYCLE USER MANUAL