CONTACT US

CALL US

Sales & Customer Service
1.714.449.9197

Tech Help, Service & Warranty
1.714.449.9197 x 113

EMAIL US

Sales & Customer Service
orders@boxcomponents.com

Tech Help, Service & Warranty
warranty@boxcomponents.com

LIVE CHAT

Get in touch with our customer support team

start live chat

PRODUCT SUPPORT

PRODUCT SUPPORT

Get Product Support

Warranty Policy

SHOP SUPPORT

Shipping & Returns

Request a Return

Privacy & Cookie Policy

FIND IT LOCALLY

Become a Dealer

View Global Distributors

TIPS & TUTORIALS

Person installing a Prime 9 component with text overlay
Box One & Two Prime 9 Installation

Box One / Box Two Gen 1 Service Manual

Box One / Box Two Gen 2 Service Manual

Prime 9 Comparison Chart

Prime 9™ E-Bike Comparison Chart

Prime 9™ E-Bike Classes Compatibility

Prime 9 Chainring Compatibility

Prime 9™ Cable Replacement Guide

Bicycle gear installation with text 'Box Three Prime 9 Installation' on a blurred background
Box Three Prime 9 Installation

Box Three / Box Four Service Manual

Prime 9 Comparison Chart

Prime 9™ E-Bike Comparison Chart

Prime 9™ E-Bike Classes Compatibility

Prime 9 Chainring Compatibility

Prime 9™ Cable Replacement Guide

Person using a Box One I-Spec II R Shifter Adapter on a bicycle shifter.
Box One I-Spec II R Shifter Adapter
Person holding a shifter adapter with text 'Box Two Matchmaker Shifter Adapter' on a dark background
Box Two Matchmaker Shifter Adapter
Person adjusting a bicycle front hub with text 'Stealth Expert Front Hub Adjustment' on a blurred background.
Stealth Expert Front Hub Adjustment on BMX Bike

Stealth Hubs Whitepaper

Hub Measurements

Recommend Spoke Lengths

BMX Race Frame Sizing Guide

BMX Race Components Compatibility Guide

BMX Sizing Chart

Close-up of a bicycle rear hub with tools in the background, labeled 'Stealth Expert Rear Hub Installation'.
Stealth Expert Rear Hub Install on BMX Bike

Stealth Hubs Whitepaper

Hub Measurements

Recommend Spoke Lengths

BMX Race Frame Sizing Guide

BMX Race Components Compatibility Guide

BMX Sizing Chart

Person assembling or disassembling a hub with text overlay on a dark background
Stealth Expert Front Hub Assemble & Disassemble

Stealth Hubs Whitepaper

Hub Measurements

Recommend Spoke Lengths

BMX Race Frame Sizing Guide

BMX Race Components Compatibility Guide

BMX Sizing Chart

Hub axle components on a red towel with text overlay
Stealth Expert Disassembling & Reassembling Hub Axle

Stealth Hubs Whitepaper

Hub Measurements

Recommend Spoke Lengths

BMX Race Frame Sizing Guide

BMX Race Components Compatibility Guide

BMX Sizing Chart

Person disassembling, reassembling, or cleaning a mechanical component on a wooden surface.
Stealth Expert Disassembling, Reassembling, Cleaning

Stealth Hubs Whitepaper

Hub Measurements

Recommend Spoke Lengths

BMX Race Frame Sizing Guide

BMX Race Components Compatibility Guide

BMX Sizing Chart

Additional Support links

View support guide

View support guide

View support guide