2A4DF-Z004Stationary Smart Cycling Trainer

111 W Ocean Blvd Suite 1800 DocuSign Envelope ID: A92F14A4-FA4E-434C-9E3E-8BDEE8F62BB8 Long Beach, CA 90802 Tel: +1 855-469-9438 Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 4 th Aug 2022 To whom it may concern: We, the undersigned, hereby authorize Eurofins Product Service GmbH to act on our behalf in all matters relating to applications for equipment authorization FCC ID: 2A4DF-Z004 including the signing of all documents related to these matters. Any and all acts carried out by Eurofins Product Service GmbH on our behalf shall have the same effect as acts of our own. By signing this application form, we agree to Eurofins’ current valid General Terms and Conditions (AGB),Testing and Certification Regulations (PZO) which can be viewed on following website www.eurofins.de/ee or retrieved on request. We also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Sincerely, Signature Gary Warren Senior Vice President Zwift Inc

111 W Ocean Blvd Suite 1800 Long Beach, CA 90802 Tel: +1 855-469-9438 Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 8/4/2022 Request for Permanent Confidentiality Company name: Zwift Inc FCC ID: 2A4DF-Z004 FCC Part 15 Certification Gentlemen, In accordance with CFR 47 § 0.457 and CFR 47 § 0.459 Zwift Inc hereby requests confidentiality of following attachments: (1) schematic diagrams, (2) detailed block diagrams, (3) detailed operational descriptions, (4) parts lists. These documents contain detailed system and equipment description and related information about the product which Zwift Inc considers to be proprietary, confidential and a custom design and otherwise would not release to the general public. Since the design is a basis from which future technological products will evolve, Zwift Inc considers that this information would be of benefit to its competitors and that the disclosure of the information in these documents would give competitors an unfair advantage in the market. Sincerely, Signature Gary Warren Senior Vice President Zwift Inc 111 W. Ocean Blvd Suite 1800 Long Beach CA 90802 USA DocuSign Envelope ID: A92F14A4 - FA4E - 434 C - 9 E3E - 8 BDEE8F62BB 8

MPE Calculation Project No: C6980-1 Report No: C14777TR1 Date: 11 th August 2022 Product details: Product name Zwift Hub Z004 Company name Zwift Inc Address 111 W. Ocean Blvd Suite 1800 Long Beach CA 90802 USA Contact Xiaofei Zhang Email [email protected] Project No: C6980 MPE Calculation for Zwift Inc Page 2 of 5 FCC requirement: This report contains calculation of maximum Possible Exposure for the Zwift Hub Z004. Required distance to the user is assumed to be 20 cm Mobile devices are defined by the FCC as transmitters designed to be used in other than fixed locations and generally to be used in such a way that a separation distance of 20cm is normally maintained between radiating structures and the body of the user or nearby persons. These devices are normally evaluated for exposure potential with relation to the MPE limit. As the 20cm separation may not be achievable under normal operating conditions, an RF exposure calculation is used to demonstrate the minimum distance required to be less than the power density limit, as required under FCC rules. FCC rule part:47CFR2.1091(3) Power density (S) relates to Equivalent Isotropic Radiated power (EIRP) according to the following: 푆= 퐸퐼푅푃 4휋푅 2 Where, R is the distance to the centre of radiation of the antenna (cm) BLE Power Density The worst case conducted output power of the BLE module was = 3.25 dBm (Value obtained from test report C14776TR1) The Power density (S) is calculated as: Frequency (MHz) Conducted output power (dBm) Antenna Gain (dBi) Maximum EIRP (mW) Power density (S) (mW/cm 2 ) Power density limit (S) (mW/cm 2 ) 47CFR1.1310 Table 1 2480.0 3.25 2.0 3.3 0.0007 1.0 Project No: C6980 MPE Calculation for Zwift Inc Page 3 of 5 ANT+ Power Density The worst case output power of the ANT+ module was = 1.73 dBm (Value obtained from test report C14775TR1) The Power density (S) is calculated as: Frequency (MHz) Conducted output power (dBm) Antenna Gain (dBi) Maximum EIRP (mW) Power density (S) (mW/cm 2 ) Power density limit (S) (mW/cm 2 ) 47CFR1.1310 Table 1 2457.0 1.73 2.0 2.4 0.0005 1.0 Conclusion: The product was shown to be compliant with the 20cm power density limit. Project No: C6980 MPE Calculation for Zwift Inc Page 4 of 5 ISED Requirement RSS Standard: RSS-102 Issue 5 Posted on Industry Canada website: March 19, 2015 Clause:2.5.2 Exemption Limits for Routine Evaluation — RF Exposure Evaluation At or above 300 MHz and below 6 GHz and the source-based, time-averaged maximum e.i.r.p. of the device is equal to or less then, in Watts, 1.31 x 10 -2 ƒ 0.6834 adjusted for tune-up tolerance, where ƒ is in MHz BLE Evaluation Calculation of e.i.r.p.: Peak conducted power was measured, see Test Report C14776TR1. The declared antenna gain was 2.0 dBi. frequency (MHz) Maximum EIRP (W) Limit (W) 2480.0 0.0033 2.73 ANT+ Evaluation Calculation of e.i.r.p.: Peak conducted power was measured, see Test Report C14775TR1. The declared antenna gain was 2.0 dBi. frequency (MHz) Maximum EIRP (W) Limit (W) 2457.0 0.0024 2.71 Project No: C6980 MPE Calculation for Zwift Inc Page 5 of 5 Conclusion The apparatus meets the exclusion requirements for RF exposure Evaluation. Prepared by: J Beevers MPhys(Hons),PhD Radio Testing Team Lead

Test Report for the FCC and ISED Testing of a Zwift Hub Z004 to FCC Rule 47CFR 15.247 and ISED RSS-247 for Zwift Inc Test Report number: C14776TR1 Project number: C6980 Author: ...................................................................................................... J Beevers MPhys(Hons), PhD Radio Testing Team Lead Checked: .................................. .................................................................. M Render BSc(Hons), PhD, MIET Senior Test Engineer Approved: ........................................ ......................................................... M Render BSc(Hons), PhD, MIET Senior Test Engineer Issue Description Issue by Date 1 Copy 1 Copy 2 PDF √ MR 12 th August 2022 This report shall not be reproduced, except in full without the prior written approval of Eurofins York The results contained in this report are only applicable to the apparatus tested. Commercial in Confidence Report Number: C14776TR1 Date: 12 th August 2022 Page 2 of 65 FCC Report Template Issue 5 CONTENTS Test Report Change History ....................................................................................................................... 6 Section 1 Test Location ...................................................................................................................... 7 1.1 UKAS Accreditation ......................................................................................................................... 7 Section 2 Customer Information ....................................................................................................... 8 Section 3 Equipment Details .............................................................................................................. 9 3.1 Equipment Under Test (EUT) .......................................................................................................... 9 3.2 EUT Photographs .......................................................................................................................... 10 3.3 Configuration of EUT ..................................................................................................................... 10 3.4 EUT Monitoring/Auxiliary Equipment ............................................................................................ 10 3.5 Monitoring Software ...................................................................................................................... 10 Section 4 Test Specifications .......................................................................................................... 11 4.1 Knowledge Database References................................................................................................. 13 4.1.1 Radiated Emissions (30MHz to 1000MHz) ............................................................................. 13 4.1.2 Radiated Emissions (1GHz to 40GHz) ................................................................................... 13 4.2 Compliance Statement .................................................................................................................. 13 Section 5 Spurious Emission Results – Radiated and Conducted .............................................. 14 5.1 Test Specification .......................................................................................................................... 14 5.2 Procedure and Test Software Version .......................................................................................... 14 5.3 Radiated Emissions (30MHz to 1GHz) ......................................................................................... 15 5.3.1 Limits at 3m ............................................................................................................................. 15 5.3.2 Emissions measurements ....................................................................................................... 15 5.3.3 Date of Test ............................................................................................................................. 15 5.3.4 Test Area ................................................................................................................................. 15 5.3.5 Tested by................................................................................................................................. 15 5.3.6 Test Setup ............................................................................................................................... 16 5.3.7 Electric field emissions, 30MHz to 1GHz ................................................................................ 17 5.4 Radiated Emissions (1GHz to 18GHz) ......................................................................................... 19 5.4.1 Limits ....................................................................................................................................... 19 5.4.2 Receiver Settings .................................................................................................................... 19 5.4.3 Emissions measurements ....................................................................................................... 19 5.4.4 Date of Test ............................................................................................................................. 19 5.4.5 Test Area ................................................................................................................................. 19 5.4.6 Tested by................................................................................................................................. 19 5.4.7 Test Setup ............................................................................................................................... 20 5.4.8 Exploratory Radiated Emission Maximization ......................................................................... 21 5.4.9 Electric field emissions, 1GHz to 18GH…

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Test Report for the FCC and ISED (ANT+)Testing of a Zwift Hub Z004 to FCC Rule 47CFR 15.247 and ISED RSS-247 for Zwift Inc Test Report number: C14775TR1 Project number: C7078 Author: ...................................................................................................... J Beevers MPhys(Hons), PhD Radio Testing Team Lead Checked: ................................... .............................................................. M Render BSc(Hons), PhD, MIET Senior Test Engineer Approved: .................................... ............................................................. M Render BSc(Hons), PhD, MIET Senior Test Engineer Issue Description Issue by Date 1 Copy 1 Copy 2 PDF √ MR 12 th August 2022 This report shall not be reproduced, except in full without the prior written approval of Eurofins York The results contained in this report are only applicable to the apparatus tested. Commercial in Confidence Report Number: C14775TR1 Date: 12 th August 2022 Page 2 of 53 FCC Report Template Issue 5 CONTENTS Test Report Change History ....................................................................................................................... 6 Section 1 Test Location ...................................................................................................................... 7 1.1 UKAS Accreditation ......................................................................................................................... 7 Section 2 Customer Information ....................................................................................................... 8 Section 3 Equipment Details .............................................................................................................. 9 3.1 Equipment Under Test (EUT) .......................................................................................................... 9 3.2 EUT Photographs .......................................................................................................................... 10 3.3 Configuration of EUT ..................................................................................................................... 10 3.4 EUT Monitoring/Auxiliary Equipment ............................................................................................ 10 3.5 Monitoring Software ...................................................................................................................... 10 Section 4 Test Specifications .......................................................................................................... 11 4.1 Knowledge Database References................................................................................................. 13 4.1.1 Radiated Emissions (30MHz to 1000MHz) ............................................................................. 13 4.1.2 Radiated Emissions (1GHz to 40GHz) ................................................................................... 13 4.2 Compliance Statement .................................................................................................................. 13 Section 5 Spurious Emission Results – Radiated and Conducted .............................................. 14 5.1 Test Specification .......................................................................................................................... 14 5.2 Procedure and Test Software Version .......................................................................................... 14 5.3 Radiated Emissions (30MHz to 1GHz) ......................................................................................... 15 5.3.1 Limits at 3m ............................................................................................................................. 15 5.3.2 Emissions measurements ....................................................................................................... 15 5.3.3 Date of Test ............................................................................................................................. 15 5.3.4 Test Area ................................................................................................................................. 15 5.3.5 Tested by................................................................................................................................. 15 5.3.6 Test Setup ............................................................................................................................... 16 5.3.7 Electric field emissions, 30MHz to 1GHz ................................................................................ 17 5.4 Radiated Emissions (1GHz to 18GHz) ......................................................................................... 18 5.4.1 Limits ....................................................................................................................................... 18 5.4.2 Receiver Settings .................................................................................................................... 18 5.4.3 Emissions measurements ....................................................................................................... 18 5.4.4 Date of Test ............................................................................................................................. 18 5.4.5 Test Area ................................................................................................................................. 18 5.4.6 Tested by................................................................................................................................. 18 5.4.7 Test Setup ............................................................................................................................... 19 5.4.8 Exploratory Radiated Emission Maximization ......................................................................... 20 5.4.9 Electric field emissions, 1GHz to 1…

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111 W Ocean Blvd Suite 1800 DocuSign Envelope ID: A92F14A4-FA4E-434C-9E3E-8BDEE8F62BB8 Long Beach, CA 90802 Tel: +1 855-469-9438 Declaration concerning Antenna Specification It is hereby declared that the product Model No.: Zwift Hub Z004 FCC ID: 2A4DF-Z004 fulfills the requirement in FCC test relating to the antenna type. The device specified above confirms to the FCC recommendations for please specify: internal / external antenna type described below: Model No. of antenna: (if applicable) Type of antenna: Permanently printed on PCB. Peak Gain of the antenna: 2 dBi Frequency range: 2400 MHz The mounting of the antenna is fixed to the radio module and no other antenna should be used. Company name: Zwift Inc Address: 111 W. Ocean Blvd Suite 1800 City: Long Beach ZIP / Postal code: CA 90802 Country: USA Zwift Inc. Place: Date: 4th Aug 2022 Signature: Long Beach, CA 90802 Tel: +1 855-469-9438 111 W Ocean Blvd Suite 1800 DocuSign Envelope ID: A92F14A4-FA4E-434C-9E3E-8BDEE8F62BB8

Arrangements for conducted tests – antenna port (Output power, conducted spurious, occupied bandwidth etc.) Arrangement for Mains conducted emissions tests Radiated tests 30MHz to 1GHz Investigative measurements 1-18GHz Radiated emissions 1-18GHz 3m distance Radiated emissions 1-18GHz 1m distance Investigative measurements 18-26GHz