Cam type CVT (Continuously Variable Transmission) ESTBIKE co.,ltd 436, Dangjeong-dong, Gunpo-si, Gyeonggi-do, Korea TEL : , Fax:

“ESTBIKE Co., Ltd.”, a company pursuing eco-friendly and energy efficiency We apply with transmissions in various fields like electric vehicles, wind-power generator, crusher, bicycle, motorcycle, and industrial machines by developing Cam-type Continuously Variable Transmission first in the world, and they exert more excellent gear change function than existing reducer, hydraulic system, manual transmission, auto transmission, belt-type Continuously Variable transmission. Cam-type Continuously Variable transmission can be used by connecting to engine or motor, as it provides 0~infinite change gear range, slip-less high torque transfer, 95% of power transmission efficiency, compact control function. Company Introduction

2006: Awarded golden prize in International Invention Exhibition 2007: Awarded bronze prize in Invention Patent Competition 2008: Awarded grand prize of Korea 100 big excellent patent products 2008: Awarded prize of president of Women Invention Association in Korea 100 big excellent patent products 2008: Awarded prize of a model entrepreneur in Dong-gu, Incheon 2008: Awarded grand prize of future industry management 2008: Executed government development project for marine leisure technology (Developed bicycle-use automatic step-less transmission 2009: Executed government development project for business start-up culturing technology (EV-USE automatic step-less transmission AXLE) 2010: Delivered wind-driven generator use automatic cam type CVT 1kw, 3kw 2011: Awarded ‘Golden prize’ of minister of Ministry of Science and Technology in Korea Invention Patent Contest 2011: Delivered automatic cam type CVT accelerator for 1kw-level horizontal wind-driven generator 2012: Selected a support project of prototype manufacturing in KIPA (Korea Invention Promotion Association) 2011: Delivered automatic cam type CVT accelerator for 3kw-level vertical type wind-driven generator 2013: Delivered rail-bike use automatic cam type CVT 2014: Developed and delivered 3-wheel electric vehicle automatic cam type CVT 2014: Established a corporation ESTBIKE Co., Ltd. 2014: Delivered automatic cam type CVT accelerator for 30kw-level wind-driven generator 2014: Delivered automatic cam type CVT accelerator for 10kw-level wind-driven generator 2014: Delivered road-grinder manual cam type CVT 2014: Acquired venture company certification 2015: Entered contract “automatic cam type CVT accelerator for 400w-level wind-driven generator” with japan 2015: Entered “10kw level EV-use automatic cam type CVT Development Contract” with China Company History

(Cam type CVT) Features 1.Range of speed change: 0 ~ Infinity 2.Control: 1) Spring control 2) electrical control System 3.Torque capacity: Very high (=as existing A/T or M/T) 4. Efficiency: 95%(average) 5. Type: ‘Cam – Link – Gear’ GearBox 6. Field of Application: bike, scooter, Car, Truck, Windpower, Combine, Electric Vehicles, Ship, Machine Robot, etc.. Features 1.Range of speed change: 0 ~ Infinity 2.Control: 1) Spring control 2) electrical control System 3.Torque capacity: Very high (=as existing A/T or M/T) 4. Efficiency: 95%(average) 5. Type: ‘Cam – Link – Gear’ GearBox 6. Field of Application: bike, scooter, Car, Truck, Windpower, Combine, Electric Vehicles, Ship, Machine Robot, etc.. Cam type CVT Features Motor Cam type CVT

Comparing a existing technology to Cam type CVT Cam type CVT

Motor & reduction gear Powertrain 0 Existing EV Powertrain Q’ty of energy consumption of the power source EV drive Proper consumption section showing the maximum efficiency Departure/dri ve Acceleration/asce nding drive Descending drive High-speed drive Stop Starting load occurs Starting load and ascending load occurs High speed rpm driving In response to motor‘s direct energy on the load during driving “Motor overload/overheat functional deterioration, reduction of mileage, and driving function deterioration occur”

EV drive 0 Motor & Cam type CVT Powertrain Apply for Cam type CVT Q’ty of energy consumption of the power source Proper consumption section showing the maximum efficiency Starting load occurs Starting load and ascending load occurs High speed rpm driving By responding up to gear change scope of ‘0~ maximum speed’ with step-less gear change to the load occurring while driving “increase mileage and driving function more than 30 % by basically solving motor overload/overheat and minimizing rapid current consumption“ Departure/dri ve Acceleration/asce nding drive Descending drive High-speed drive Stop

DivisionExisting EV Power trainCam type CVT Powertrain Power train Power sourceMotor Power train deviceReduction gear or nothingCam type CVT Current consumption Start-up Require high start-up torque Over 300% increase compared with rate current consumption (Overload) - Start-up response limit High start-up load response with step-less gear change variable, Start driving from 0 change gear ratio No impulse current consumption upon start-up load/minimize energy consumption Ascending Require high driving torque Over 300% increase compared with rate current consumption (Overload) - Ascending response limit High start-up/ascending load response with step-less change gear variable, start driving from 0 change gear ratio, minimize energy consumption with driving via high reduction gear ratio Upon rated cruise control driving Require suitable rpm Rated current consumption High-speed driving Require high driving torque rpm Output kw falls to 1/3~2/3 of rated kw with use of high rpm over rated rpm, limit of high-speed driving Use rated output kw by driving in response to driving rpm with step-less change gear variable up to change gear ratio 0 - maxim driving speed rpm - Exert high-speed driving Driving available distance Depending on start-up/ascending driving Reduce driving available distance of 30%~50% Increase mileage more than 30% compared with existing, by responding with step-less change gear variable of high driving load and rpm Ascending function Ascending angle due to fixed reduction gear ratio Motor overload and with driving load responding limit upon increase of loadage Function deterioration by overheat Solve functional deterioration due to motor overload/overheat by driving load, with step-less change gear variable of driving/start-up load upon ascending driving, increase of loadage Comparing a existing technology to Cam type CVT

Application Apply for Windpower Range of Ratios: 0 ~ 1:23 (speed up) Apply for crusher Range of Ratios: 0 ~ 50:1 (speed down) Apply for EV Range of Ratios: 44:1 ~ 18:1 (speed down) Apply for Bike Range of Ratios: 1:1 ~ 1:3 (speed up) Apply for EV Range of Ratios: 0 ~ 11:1 (speed down) Apply for Windpower Range of Ratios: 0 ~ 1:4 (speed up)

Field of application