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SpeedBox 1.4 B.Tuning for Bosch SX

Marsoni M251S
Sale price$396.75
Pay 4 payments of $99.19 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
SpeedBox 1.4 B.Tuning for Bosch SXSpeedBox 1. 4 B. Tuning for Bosch SX (Smart System + Rim Magnet) Advanced tuning chip for Bosch Performance Line SX motors (BDU3142, BDU3143) with simplified installationno magnet simulator required. Enables unlimited speed (max 35 km h recommended) and connects to the SpeedBox App for real time ride data. Activation via App, WALK function, or + + buttons. Compatible with Bosch Rim Magnet setups and current software versions. Note: Not compatible with
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.6 ★★★★★
Based on 1255 reviews
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Verified Purchase
Claudia
Omaha, US
★★★★★ 4
Cute and easy to assemble
Color: Nursery Book Shelves, Natural, Size: 24"W - 2P, Color: Nursery Book Shelves, Natural, Size: 24"W - 2P
Love these!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 1, 2025
A
Verified Purchase
Amy D
New York, US
★★★★★ 5
Very nice, wide shelves
Color: Rustic Brown, Size: 72"W X12"D - 2P
These shelves are great. Nice depth They work perfectly for my bedroom design. Glad that I ordered them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
J
Verified Purchase
Jackie S
Lake Worth, US
★★★★★ 5
great product
Color: Black, Size: 67"W X12"D - 2P
very easy to install, well made
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Reviewed in the United States on April 2, 2026
A
Verified Purchase
AG
Los Angeles, US
★★★★★ 5
Looks and quality
Color: Walnut, Size: 30"W x12"D - 3P
Great quality and looks very good.
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Reviewed in the United States on April 8, 2026
A
Verified Purchase
Alice M. Mellinger
Chelsea, US
★★★★★ 2
Flimsy
Color: Oak, Size: 30"W x12"D - 3P
These shelves feel and look very flimsy. They’re hollow, and while the description says they’re made of wood, they feel thinner and less strong than particle board. The brackets are sturdy, and the instructions are clear. They’re easy to install. But, at least for the 12” deep shelves, the bracket poles are shorter than the depth of the shelves, so the shelves sag at the front. Pretty disappointing.
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Reviewed in the United States on March 21, 2026

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