What size bike to get for a 5 year old

For a 5-year-old, compare 14-, 16-, and 18-inch bikes first, using measured height—not age alone—to narrow the choice. Then have the child try the bike and confirm comfortable stand-over, reach, steering and brake control. Never size up merely to leave room for growth.

Start with the child’s measured height

Measure the child without shoes, standing straight against a wall. Record the floor-to-top-of-head height. Also measure inseam from the floor to the crotch while the child stands naturally. Height identifies the wheel sizes worth trying; inseam helps reveal whether the child can stand over and mount a particular frame comfortably.

XBikes uses these starting points for the sizes that include age five:

These ranges overlap deliberately: two children of equal height may differ in leg length, reach and confidence. If height falls in an overlap, try both relevant sizes rather than choosing from the age column.

How to choose between 14, 16 and 18 inches

A 14-inch bike is the first comparison when the rider measures 37–45 inches (94–114 cm). A 16-inch bike enters the comparison at 40–48 inches (102–122 cm), while an 18-inch bike starts at 43 inches and extends to 52 inches (109–132 cm).

Do not automatically choose the largest size within the child’s height range. The right candidate is the one the child can mount, straddle, steer and stop without stretching, leaning awkwardly or losing control. Current confidence matters too: a hesitant beginner may control a smaller fitting option more comfortably, but the bike must still pass the individual fit check.

Perform the fit check in this order

1. Stand-over: Have the child straddle the bike with both feet on the ground. The frame should not press into the child’s body, and getting on or off should not be a struggle.
2. Seated reach: Check that the child can sit naturally and reach the handlebar without locking the elbows, hunching forward or sliding out of position.
3. Steering control: Ask the child to turn the handlebar both ways while remaining balanced and in control.
4. Brake reach: Confirm that the child can reach and operate the bike’s actual braking controls reliably. Do not assume a control is usable merely because the child can touch it.
5. Confidence: Let the child start, ride and stop in a suitable supervised area. If the bike feels intimidating or cumbersome, do not buy it for future growth.

Because frame shape and adjustment range can differ even when wheel labels match, wheel diameter alone cannot establish fit. Follow the exact product manual for assembly and adjustment details, or use a qualified bicycle mechanic when anything is uncertain.

How the supplied training-wheel bikes compare

These catalog options are relevant when the fit check points to a listed size and the parent specifically wants a training-wheel bike. Their size selections make it possible to compare 14- and 16-inch candidates from the starting ranges above; selected listings also include 12- and 20-inch variants.

• XJD Girls' Bike with Training Wheels, 12/14/16/20 Inch – Purple

  A training-wheel bike offered in 12-, 14-, 16- and 20-inch variants. Its 14- and 16-inch choices are relevant comparison candidates when the child’s measured height and hands-on fit support them.

• XJD Kids Bike for Girls – Pink, 12/14/16/20 Inch with Training Wheels

  This training-wheel listing includes 12-, 14-, 16- and 20-inch sizes. Compare its 14- or 16-inch variant only after checking the five-year-old’s height, inseam, reach and control.

• XJD Pink Girls' Bike – Kids 12/14/16 Inch Training Wheel Bicycle

  A training-wheel bicycle available in 12-, 14- and 16-inch variants. The 14- and 16-inch options may be relevant for a five-year-old, subject to measured height and an individual fit check.

• XJD Girls' Bike with Training Wheels, 12/14/16/20 Inch – Purple is listed in 12-, 14-, 16- and 20-inch sizes.
• XJD Kids Bike for Girls – Pink, 12/14/16/20 Inch with Training Wheels likewise offers listed 12-, 14-, 16- and 20-inch options.
• XJD Pink Girls' Bike – Kids 12/14/16 Inch Training Wheel Bicycle is listed in 12-, 14- and 16-inch sizes.

None of these products has a supplied 18-inch option. If the child’s measurements and hands-on fit point to 18 inches, the displayed 16- and 20-inch versions are nearest-size comparison points only—not substitutes or equivalent fits. Under the XBikes starting standard, 20 inches begins at ages 7–12 and heights of 48–60 inches (122–152 cm), so a 5-year-old’s age alone does not support moving to that size. Product-title wording is also a catalog label, not evidence that a bike fits a particular child.

Make the final decision safely

Recheck the selected bike after adjustment: the child should still have comfortable stand-over, natural reach, controlled steering and reliable access to the brakes. Use a properly fitting bicycle helmet that sits level, with its straps secured according to the helmet manufacturer’s instructions.

For this 5-year-old, measure height and inseam now, shortlist only the matching 14-, 16- or 18-inch starting ranges, and choose after a successful hands-on fit check. If no candidate gives confident control, keep looking rather than buying the next size up.