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Ships within 48 hours · Estimated delivery Aug 30 - Sep 4
For Your Every Summer RSVP, with Code: SUMMER15
Description
Apex 50 Rear Rack Auxiliary Battery Kit - Extend Your RangeProduct Features: Voltage Specific CompatibilityThe 48V version is only compatible with 48V Apex 50 models. The 52V version must be used with 52V Apex 50 models. Do not mix voltages, as this can cause damage and is not supported. Extended Riding RangeSignificantly increases your bikes range, making it ideal for long distance rides and all day adventures. Integrated Battery BalancerIncludes a built in balancer to safely manage power between the main

Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 2303 reviews
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Product Reviews
★★★★★ 4
A worthwhile addition to just butyl itself.
Model: 197mil 31 sqft Car Sound Deadening Mat
I used this as a topper to butyl sound deadening material on the floor and side panels and am very pleased. It was generally easy to use. It is very sticky and cannot be easily repositioned as the foam will separate from the sticky side if you try, but its not a big deal. I have yet to run the car but the panels are much quieter when tapped on vs just the butyl alone, and this stuff weighs almost nothing.
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Reviewed in the United States on February 17, 2026
★★★★★ 5
Good deadening
Model: 197mil 31 sqft Car Sound Deadening Mat
This sound deadening works well and has good adhesion .
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Reviewed in the United States on May 18, 2026
★★★★★ 5
Easy to install and great value.
Model: 197mil 31 sqft Car Sound Deadening Mat
Very easy to cut and install with the rollers I bought separately. It adheres well even though I was installing it when the weather was closer to 40-50 degrees. Definitely helps to deaden the sound from the bare sheet metal.
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Reviewed in the United States on April 2, 2026
★★★★★ 1
Garbage
Model: 197mil 31 sqft Car Sound Deadening Mat
Straight garbage, I tried to cut corners on cost of building an spl car and should have stuck with dynamat or something like that. This is NOT for sound deadening…… Garbage product!!!
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Reviewed in the United States on June 5, 2026
★★★★★ 3
Not for me
Model: 197mil 31 sqft Car Sound Deadening Mat
Seemed “cheap” for my personal needs, so I returned it.
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Reviewed in the United States on March 23, 2026
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