There are two ways to get an electric bike. You can buy a new e-bike, or you can add a conversion kit to a bike you already own. The kit is usually cheaper. Not always, and not by as much as some ads claim.

If you're trying to figure out conversion kit vs new ebike cost, this guide puts real numbers on both. We priced five example builds using what's listed on our site today, then compared them with typical 2026 prices for new e-bikes. We also cover the costs people forget, like batteries, small parts, and your own time.

One note first: we sell conversion kits, so we're not neutral. That's why we'll also tell you when a new bike is the smarter buy.

Quick Answer

What does a conversion kit actually cost?

Most conversion kit builds land between about $600 and $1,900 in parts, depending on the motor and battery you pick. Kits usually ship without a battery, so we priced both together. Here are seven example builds using current Golden Motor prices.

Prices checked October 9, 2026. They include current sale pricing, so they will move. "From" means the lowest option for that kit. The 36V pack in the budget build was sold out when we checked, and some BBSHD bottom bracket sizes were too, so confirm stock before you order. Check each product page for what's in the box and which battery voltages the kit works with.

Free shipping applies to US and Canada orders over $500, per our product pages, so every build above qualifies when the kit and battery ship together. Details are on our shipping policy.

What does a new e-bike cost in 2026?

Most new e-bikes cost between about $1,000 and $3,000. Cargo and mountain models run higher.

Ranges are rounded from several 2026 pricing guides (listed under Sources at the end). Sales and model-year deals can move any of them by a few hundred dollars.

Side by side: same rider, two routes

Here's how the numbers compare for four common riders. The conversion column assumes you already own a bike that suits the kit.

At the cheap end of new bikes, the gap is small. A $1,000 e-bike and an $857 conversion are close enough that the donor bike, your time, and what you want from the ride will decide it.

What the price tags leave out

The sticker price isn't the whole bill on either route.

Extra costs on a conversion

• A donor bike. If you don't own one, add its price. The frame has to suit the kit, which we cover below.
• Small parts. Front hub motors need a torque arm, and if you want the motor to cut in only when you pedal, the pedal sensor is $24.99. The Magic Pie Edge page, for example, lists the torque arm, pedal sensor, and charger as separate purchases.
• Brakes and drivetrain. More power means you'll want good brakes. Mid-drives also wear chains and cassettes faster, which we cover in our Golden Motor vs. Bafang comparison.
• Your time. Plan on a weekend afternoon for a first build, longer if your bottom bracket needs extra work. A local bike shop can quote you an install if you would rather skip it. Prices vary by shop.

Extra costs on a new e-bike

• Battery replacement. Replacement packs for new e-bikes often cost several hundred dollars, and some bikes use brand-specific packs, so you may have only one place to buy.
• Repairs. Options depend on the brand. Some parts are only sold through the bike's maker, and a model can be discontinued.
• Features you didn't pick. Integrated lights, apps, and big batteries are priced in whether you want them or not.

Running costs: charging and battery life

Charging is cheap on either route. A full charge of our 48V 17.5Ah pack (840 Wh) costs about 15 to 17 cents at the current US average residential rate of roughly 18 cents per kWh, according to the EIA.

The bigger cost is the battery wearing out. That pack is rated for 1,000+ charge cycles. If it gets there, the battery costs you about 50 cents per full charge at today's $503.99 price, roughly three times the electricity. Real life varies with how you ride and store the pack, so treat that as a rough guide. The listing also rates it at about 40–55 km (25–34 miles) per charge.

One upside of a kit: you can replace or upgrade the battery on your own schedule with any compatible pack from our battery collection.

Repairs and upgrades: where a kit pulls ahead

With a kit, every part is sold separately. A failed part means replacing that part, not shopping for a new bike. Today a Photon Gen 2 replacement controller is $189.99, the Intuition display is $143, and a 48V 17.5Ah battery is $503.99.

You can upgrade over time too: a bigger battery, a different display, or new gearing. A bottom bracket conversion kit even lets you move a CYC Photon to a different frame later.

The tradeoff is that you do the diagnosing. Our support team helps with that, but a new bike from a local shop gives you someone to hand it to.

Is your bike a good candidate for a kit?

Check these four things before you order.

1. Bottom bracket width (mid-drives). Measure your shell first. The BBSHD kit, for example, covers 68–120mm, and CYC says the Photon and X1 Pro kits share that same 68–120mm range.
2. Dropouts and tires (hub motors). Your fork or frame has to fit the motor axle, and the tire has to fit the rim. The Magic Pie Edge page, for example, lists tires from 1 to 2.3 inches on a regular rim.
3. Brakes and wheels. Make sure brakes, bearings, and wheels are in good shape before you add power.
4. Frame strength. A light frame paired with a high-power motor deserves a conversation before you buy.

Not sure? Send us your bike's frame details through our contact page and we'll check the fit.

When a new e-bike is the better buy

• You don't own a bike you'd want to convert, and you don't want to buy one first.
• You want one warranty covering the whole bike, plus lights, fenders, and a rack built in.
• You don't want to work on bikes and don't have a shop you trust.
• Your frame isn't a good fit, like a very light frame or an unusual bottom bracket.
• You need a purpose-built design, like a cargo or folding bike.

What about the law?

A conversion that stays inside your state's e-bike class limits is generally treated like a factory e-bike. Going over 750W or 28 mph on motor power can change how your state classifies it. We cover the details in our state-by-state legal guide, and our wattage guide helps you pick a power level that fits.

So which route should you pick?

• Own a bike you like and want power or flexibility → a conversion kit is the better value.
• Tight budget and flat routes → a PRO-902 or Magic Pie Edge hub build.
• Hills → a mid-drive like the BBS02B or BBSHD.
• Trails → the CYC Photon Gen 2. Weighing Photon Pro or X1 Pro? See our CYC comparison.
• No bike and no wrenching → buy new.
• Comparing kit brands → read Golden Motor vs. Bafang vs. Cheap Amazon Kits.

Related reading

Browse by Category

Explore: All E-Bike Conversion Kits | Hub Motor Kits | Bafang Mid-Drive Kits | CYC Mid-Drive Kits | Batteries | Parts & Accessories

Frequently Asked Questions

Sources

• Golden Motor product and collection pages, prices checked October 9, 2026
• E-Bike Review Lab: Electric Bike Pricing in 2026
• Letrigo: How Much Does an Electric Bike Cost? 2026 Price and Ownership Guide
• TechBullion: How Much Are Electric Bikes?
• U.S. EIA: Short-Term Energy Outlook, residential electricity prices