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SE Bikes Upgrade Parts

Ready to upgrade your SE Bikes build? Shop SE Bikes upgrade parts at Billet BMX, including wheels, hubs, rims, handlebars, grips and tires. Swap in stronger wheels and hubs for a smoother roll, or refresh your cockpit with new bars, stems and grips. Pick tires in the size and color that suits your ride, then finish the look with a comfortable seat and pedals. Just replacing something worn out? Browse our SE Bikes replacement parts. Want a full bike? Explore the main SE Bikes collection. Every part page lists sizes and specs, so you can check fit before you buy. Not sure what fits? Contact our team, and pay over time with Shop Pay or Affirm at checkout.

Frequently Asked Questions

Quick answers before you upgrade

What are the best upgrades for an SE Bikes bike?

Wheels, tires, handlebars and grips change ride feel the most. Start with the part that bothers you most, such as a worn grip or a heavy wheel, then upgrade the rest over time.

Will these upgrade parts fit my SE bike?

Many BMX parts use standard sizes, but fit depends on your bike. Check wheel size, clamp size and axle size on the product page before ordering, or contact our team if you are unsure.

What is the difference between upgrade and replacement parts?

Upgrade parts improve performance, comfort or looks, like lighter wheels or new bars. Replacement parts swap out something worn or broken with a like-for-like part. For those, see our SE Bikes replacement parts.

How do I choose the right size wheels, tires, and handlebars?

Match wheel and tire size to your current wheels. For handlebars and stems, match the clamp size. For hubs, check the axle size and driver type. Sizes are listed on each product page.

Can I pay for upgrades in installments?

Yes. Shop Pay and Affirm installment options are available at checkout, subject to approval. See our financing page for details.