Do they sell 8 inch bicycles

No 8-inch bicycle appears among the supplied XBikes options. The listed models begin at 12 inches, so they are comparison points—not 8-inch substitutes.

What XBikes lists instead

The supplied catalog includes three children’s bicycles, each offered with 12 Inch, 14 Inch and 16 Inch SKU labels. None has an 8 Inch label. Because wheel sizes are not interchangeable, a 12-inch bicycle should not be presented as equivalent to the requested 8-inch bicycle.

These particular catalog options help answer the question by showing the nearest listed wheel size and letting you compare three models only if the child is large enough for a properly fitted 12-, 14- or 16-inch bicycle.

• Flower Pink XJD Girls Bike with Doll Seat & Basket

  A nearest-size comparison point, not an 8-inch substitute. This Training Wheel Bike is supplied in 12 Inch, 14 Inch and 16 Inch labels and requires an individual fit check.

• Purple XJD Girls' Bike with Doll Seat & Basket

  This Training Wheel Bike has 12 Inch, 14 Inch and 16 Inch labels. It is relevant only if one of those sizes fits the measured rider; it is not an 8-inch bicycle.

• Black XJD Kids' BMX Bicycle with Training Wheels

  This Kids' BMX Bike is supplied in 12 Inch, 14 Inch and 16 Inch labels. Use it only as a larger-size comparison, subject to hands-on fit and control checks.

• Flower Pink XJD Girls Bike with Doll Seat & Basket is categorized as a Training Wheel Bike and has 12 Inch, 14 Inch and 16 Inch labels.
• Purple XJD Girls' Bike with Doll Seat & Basket is also categorized as a Training Wheel Bike, with the same three size labels.
• Black XJD Kids' BMX Bicycle with Training Wheels is categorized as a Kids' BMX Bike and is likewise listed in 12 Inch, 14 Inch and 16 Inch sizes.

Those catalog descriptions support a comparison of category and labeled size only. They do not establish that any model fits a particular child.

First confirm what “8 inch” means

Check whether 8 inches refers to the wheel diameter, not the child’s inseam, the frame, or another measurement. Read the size marking on the current bicycle or its tire and compare it with the product’s exact SKU label. If a shop, therapist or other specialist specified an 8-inch wheel, keep that requirement intact unless the person who set it advises otherwise.

XBikes’ supplied sizing standard begins at 12 inches, so it provides no approved age or height range for an 8-inch bicycle. Do not guess one from the ranges for larger wheels.

Measure the rider before considering 12 inches

Measure the child’s height without shoes, standing straight against a wall. Measure inseam from the floor to the crotch using the same clothing and footwear the child will normally wear while riding. These measurements narrow the search, but an actual fit check remains necessary.

Use the XBikes figures only as starting points:

Age overlaps and is less important than the rider’s measured height, inseam, reach, brake control and current confidence. Even when a measurement falls within a starting range, the bicycle still needs to suit the individual rider.

Perform an individual fit check

Have the child try the exact bicycle rather than buying by wheel label alone. Do not choose an oversized bicycle merely to allow room for growth. During the check, confirm that the child can:

• stand over the bicycle with appropriate clearance;
• reach the handlebars without stretching or losing control;
• operate the brakes comfortably and reliably;
• start, stop, steer and put a foot down with confidence.

If any of those checks fail, the bicycle is not an appropriate fit in its current setup, even if age or height falls within the table. Follow the exact product manual for assembly, adjustment, maintenance, load limits and compatibility. When the manual does not resolve a fit or mechanical question, use a qualified bicycle mechanic.

When the listed products are relevant

The three supplied models become relevant only if the measurement and hands-on checks indicate that a 12-, 14- or 16-inch bicycle is appropriate. The two Training Wheel Bikes provide catalog alternatives to the Kids' BMX Bike, but the supplied facts do not establish differences in brakes, weight, materials, geometry or other fit-critical features.

If the child genuinely needs an 8-inch wheel, none of these products is relevant as a substitute. Ask XBikes to confirm whether an 8-inch model exists outside the supplied options, or continue looking specifically for the required size. Do not move up to 12 inches solely because it is the nearest listed label.

Make the final decision safely

After selecting a bicycle that passes the fit check, add a properly fitting bicycle helmet. It should sit level, and its straps should be used according to the helmet manufacturer’s instructions.

The practical answer is therefore conditional but clear: no supplied XBikes product is an 8-inch bicycle. Verify that 8 inches truly means wheel size; if it does, reject these three as substitutes. If the rider measures at least within the 12-inch starting range, try the exact 12-inch model and accept it only when stand-over clearance, reach, braking and control all work for that child.