MadJax XSeries X6 vs. Sierra LSV AX4
By The Smith Family, reviewed by Brad · Independent, no paid placement · Last verified Sep 25, 2026
MadJax XSeries X6 takes it. It holds the stronger overall balance of range, value, power, and warranty. The full side-by-side of verified specs is below — every figure carries a source and a verification date.
Key takeaways
- The MadJax XSeries X6 beats the Sierra LSV AX4 on the stronger overall balance of range, value, power, and warranty.
- Both the MadJax XSeries X6 and the Sierra LSV AX4 are factory-certified LSVs, confirmed against the NHTSA vPIC registry.
Head to head · Tampa Bay Edition
MadJax XSeries X6 vs. Sierra LSV AX4
LAST VERIFIED 09/25/2026
| MadJaxXSeries X6Winner | Sierra LSVAX4 | |
|---|---|---|
| MSRP range | $17,900 | — |
| Top speed | — | 25 mph†1 |
| Range (low) | — | 35 mi†1 |
| Range (high) | — | 40 mi†1 |
| Battery type | lithium†2 | lithium†1 |
| Battery capacity | — | 125 Ah†1 |
| System voltage | 48 V†2 | 48 V†1 |
| Seats | 6✓†2 | 4†1 |
| Length | — | 116 in†1 |
| Width | — | 49.5 in†1 |
| Height | — | 80.3 in†1 |
| Curb weight | — | 1,036 lb†1 |
| Motor power | 5 kW†2 | 5 kW†1 |
| Motor power (hp) | 6.7 hp†2 | — |
| Brakes | Front/rear hydraulic disc†2 | Four-wheel hydraulic disc†1 |
| Display size | 10 in†2 | — |
| Warranty | 3 yr†2 | — |
| Battery warranty | 12 yr†2 | — |
| LSV certified (street-legal capable) | Yes†3 | Yes†1 |
| Range, normalized◆ computed | — | ~48 mi |
◆ Range, normalized is our figure, not the maker's: each pack's energy at a standard 0.125 kWh/mile, the same on every cart — an apples-to-apples check on the “up to” range claims above, which are usually measured at 19 mph on the largest optional pack.
◆ The verdict
It holds the stronger overall balance of range, value, power, and warranty.
◆ Price the fight — Florida out-the-door
MadJax XSeries X6base build · FL out-the-door
est. $309.81/mo — 20% down, 7.5% APR, 60 mo. Confirm real rates with the lender.
Sierra LSV AX4base build · FL out-the-door
No sourced base price for the Sierra LSV AX4— we don't estimate what the maker doesn't publish, so this side has no ledger.
METHODOLOGY — what's verified, what's estimated
Green ✓ marks the better verified figure where the two differ. Verdict scored on the verified specs above — factory-LSV status gates the win.
Rather skip the configurator? Get a dealer quote on either cart:
Frequently asked
- Is the MadJax XSeries X6 or the Sierra LSV AX4 better?
- MadJax XSeries X6 takes it. It holds the stronger overall balance of range, value, power, and warranty.