{"product_id":"speedbox-1-4-tuning-chip-for-bosch-performance-line-sx-gen4-bdu3142-bdu3143","title":"SpeedBox 1.4 Tuning Chip for Bosch Performance Line SX Gen4 (BDU3142\/BDU3143)","description":"\u003cp\u003e\u003cstrong\u003eSpeedBox 1.4 Tuning Chip for Bosch Performance Line SX Gen4 (BDU3142\/BDU3143)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSpeedBox 1.4 is a tuning chip for Bosch Performance Line SX 4th-generation motors (BDU3142, BDU3143) on Smart System e-bikes with the valve-mounted Bosch Rim Magnet. It removes the factory 25 km\/h speed limiter; the limit can be set up to 99 km\/h, but the manufacturer recommends not exceeding 35 km\/h to avoid error codes.\u003c\/p\u003e\u003cp\u003eInstallation is simplified: there is no separate magnet simulator to position, and the chip connects with original connectors.\u003c\/p\u003e\u003cp\u003eReal speed is not shown on the bike's display during the ride; correct distance appears once the post-ride countdown finishes. For live speed on your phone, see the B.Tuning version.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaximum speed: unlimited (35 km\/h maximum recommended)\u003c\/li\u003e\n\u003cli\u003eTuning status shown on display: 3.5 km\/h = on, 2.5 km\/h = off\u003c\/li\u003e\n\u003cli\u003eCorrect travelled distance shown after the post-ride countdown finishes\u003c\/li\u003e\n\u003cli\u003eSpeed limit: adjustable up to 99 km\/h\u003c\/li\u003e\n\u003cli\u003eReal speed on bike display: no\u003c\/li\u003e\n\u003cli\u003eActivation: WALK function or - + - + button sequence (only when stationary)\u003c\/li\u003e\n\u003cli\u003eSimplified installation: no magnet simulator to position; uses original connectors\u003c\/li\u003e\n\u003cli\u003eSpeedBox Connect app: not supported\u003c\/li\u003e\n\u003cli\u003eDesigned for motors mounted with 2 top screws\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBosch Performance Line SX 4th-generation motors: BDU3142, BDU3143\u003c\/li\u003e\n\u003cli\u003eE-bikes with the Bosch Rim Magnet (magnet attached to the valve)\u003c\/li\u003e\n\u003cli\u003eCurrent Bosch software versions\u003c\/li\u003e\n\u003cli\u003eNot compatible with standard spoke-mounted magnets\u003c\/li\u003e\n\u003cli\u003eNot compatible with Bosch ABS system\u003c\/li\u003e\n\u003cli\u003eNot compatible with the SpeedBox Connect app\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHow to Use\u003c\/strong\u003e\u003c\/p\u003e\u003col\u003e\n\u003cli\u003eBefore installing on a new bike, ride at least 10 km.\u003c\/li\u003e\n\u003cli\u003eConnect the male and female connectors in the direction of the lock; do not twist or rotate them while connecting.\u003c\/li\u003e\n\u003cli\u003eWith the bike stationary, activate tuning by holding the '-' button to engage WALK assist (or use the - + - + sequence if WALK is not enabled). The display shows 3.5 km\/h when tuning is on.\u003c\/li\u003e\n\u003cli\u003eRepeat to deactivate; the display shows 2.5 km\/h and the limit returns to 25 km\/h.\u003c\/li\u003e\n\u003cli\u003eSet a custom speed limit (up to 99 km\/h) by switching modes TURBO, eMTB, TOUR+, ECO, TOUR+, eMTB, TURBO. The display shows the selected limit (2.5 km\/h = 25 km\/h, 3.0 km\/h = 30 km\/h, 3.5 km\/h = 35 km\/h), which is saved after 15 seconds of inactivity.\u003c\/li\u003e\n\u003cli\u003eAfter each ride, leave the bike switched on until the display shows 0.0 km\/h and do not remove the display before this countdown finishes; it can take several minutes after a long ride. For short stops keep one foot on the pedal to prevent the countdown starting.\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003e\u003cstrong\u003eGood to Know\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCheck your motor model, magnet type and motor space before ordering.\u003c\/li\u003e\n\u003cli\u003eDo not activate or deactivate tuning while riding.\u003c\/li\u003e\n\u003cli\u003eDisable automatic firmware updates in the eBike Flow app. Firmware updates can make the chip inoperable.\u003c\/li\u003e\n\u003cli\u003eSpeedBox warranty does not cover malfunctions caused by firmware updates.\u003c\/li\u003e\n\u003cli\u003eBluetooth version: SB14BT-B.\u003c\/li\u003e\n\u003cli\u003eFor BDU3144\/BDU3145 motors, see SpeedBox 1.5 (SB15-B \/ SB15BT-B).\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eLegal and Safety Notice\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis tuning chip changes the e-bike's factory speed limit and assistance settings. A modified e-bike may not be legal to ride on public roads, cycle paths or other public areas; SpeedBox products are intended for use on private property, at the rider's own risk. Installation may void the e-bike manufacturer's warranty. Installation by a qualified technician is recommended. Always wear appropriate protective gear.\u003c\/p\u003e","brand":"Speedbox","offers":[{"title":"Default Title","offer_id":50748563750960,"sku":"SB14-B","price":736.59,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0031\/4012\/4739\/files\/0b7fca4e8690734367eb7d813147a73f-sb14-b.jpg?v=1791294525","url":"https:\/\/www.moto1.nz\/products\/speedbox-1-4-tuning-chip-for-bosch-performance-line-sx-gen4-bdu3142-bdu3143","provider":"Moto1","version":"1.0","type":"link"}