BANDO 842-20-30 CVT DRIVE BELT – GY6 125cc 150cc 170cc SCOOTER GO-KART

BELT SPECIFICATIONS

• Brand: BANDO

• Belt Size: 842-20-30

• Length: 842mm / Approx. 33.15"

• Top Width: 20mm

• Groove Angle: 30°

• Type: CVT Drive Belt

• Engine Type: GY6-Based 4-Stroke

• Typical Engine Configuration: LONG-CASE GY6

• Common Engine Sizes: 125cc / 150cc / 170cc and select larger GY6-based applications

• Common Applications: Scooters, Go-Karts, Buggies and other CVT-equipped vehicles

• Made In: Japan

• Condition: Brand New

• Quantity: 1 Belt

• Official BANDO Dealer

IMPORTANT

PLEASE MATCH 842-20-30 TO THE NUMBERS PRINTED ON YOUR OLD BELT BEFORE ORDERING.

Engine code, engine size, vehicle brand and wheel size are helpful for identifying the correct belt, but they do not guarantee fitment.

GY6 ENGINE FITMENT

The 842-20-30 belt is commonly used with LONG-CASE GY6 125cc and 150cc 4-stroke engines, as well as some larger-displacement versions based on the same GY6 engine platform.

COMMON GY6 ENGINE CODES ASSOCIATED WITH THIS BELT SIZE INCLUDE:

• 152QMI – commonly 125cc GY6

• 157QMJ – commonly 150cc GY6

• 1P57QMJ

• BN157QMJ

• JJ157QMJ

• YN1P57QMJ

• 161QMK – larger-bore GY6-family engine

• 1P61QMK

• BN161QMK-A

• Other compatible QMJ / QMI / QMK long-case GY6 variants

MOST COMMON APPLICATION

The most common application for this belt is a:

GY6 125cc / 150cc LONG-CASE ENGINE

particularly the:

152QMI / 157QMJ engine family

These engines are extremely common in Chinese-built scooters and other powersports vehicles.

LONG-CASE GY6 APPLICATION

The 842-20-30 is normally considered a LONG-CASE GY6 belt.

Long-case 125cc/150cc GY6 engines are commonly found on scooters with:

• 12" rear wheels

• 13" rear wheels

• Longer CVT/transmission housings

A long-case GY6 allows the use of a longer CVT belt between the front variator and rear clutch/driven pulley.

842-20-30 is one of the common belt sizes used on these long-case engines.

SHORT-CASE GY6 APPLICATION

A short-case GY6 has a shorter CVT/transmission housing and is commonly found on scooters with smaller rear wheels.

Short-case GY6 applications commonly use a shorter belt, such as:

743-20-30

Some applications also use 835-series belts or other sizes.

DO NOT ASSUME:

• Long Case = Always 842

• Short Case = Always 743

• 150cc = Always 842

There are exceptions depending on the manufacturer, model, wheel size and CVT configuration.

ALWAYS CHECK THE NUMBER ON YOUR ORIGINAL BELT.

CHINESE SCOOTER & POWERSPORTS BRANDS

The 842-20-30 belt size can be found on select long-case GY6 models sold under many Chinese scooter and powersports brand names, including:

• TaoTao

• Tao Motors

• Wolf

• Ice Bear

• Jonway

• JMSTAR / JM Star

• Roketa

• SUNL

• Tank / Tank Sports

• Peace Sports

• Gator

• BMS

• ZNEN / Zhongneng

• Bintelli

• Baja

• JCL

• Lance

• Longbo

• Lifan

• Loncin

• Baotian

• Bashan

• Kinroad

• Kaitong

• Keeway

• Riya

• Yiben

• Wildfire

• Vitacci

• Amigo

• Dongfang

• Motofino

• Motorino

• Panterra

• Qlink

• Verucci

• Yongfu

• Zongshen

• And many other Chinese-manufactured GY6 scooter and powersports brands

IMPORTANT BRAND FITMENT NOTICE

THE BRAND NAME ALONE DOES NOT GUARANTEE FITMENT.

For example, TaoTao, Ice Bear, Jonway, Roketa and Wolf have sold many different scooter models using different wheel sizes, engine cases and CVT belt lengths.

This listing is specifically for a:

842-20-30 BELT

Please match that number to your original belt whenever possible.

KNOWN VEHICLE APPLICATIONS

Known applications for the 842-20-30 size include:

• Vento Phantom R3 150cc – 2003

• Vento Phantom R4i 150cc – 2004–2006 Non-Turbo

The size is also commonly associated with select BMS, Jonway, Roketa and SUNL 150cc long-case scooters.

COMMON VEHICLE TYPES

Depending on the exact engine and CVT configuration, the 842-20-30 belt may be used on:

• Chinese 125cc Scooters

• Chinese 150cc Scooters

• Chinese 170cc Scooters

• Big-Bore GY6 Scooters

• Street-Legal Scooters

• Mopeds

• Go-Karts

• Buggies

• Select ATVs

• Other GY6-Based CVT Vehicles

HOW TO IDENTIFY YOUR ENGINE

Look for the engine identification number stamped into the engine case.

Common GY6 codes include:

152QMI

or

157QMJ

A 157QMJ is one of the most common Chinese 150cc GY6 engine families.

However, finding 157QMJ on your engine does NOT automatically guarantee an 842 belt, because the CVT case configuration can vary.

BEST WAY TO VERIFY FITMENT

STEP 1 – CHECK YOUR OLD BELT

Look for the numbers printed on the outside of your existing CVT belt.

You are looking for:

842-20-30

STEP 2 – CHECK YOUR ENGINE

This belt is most commonly associated with a long-case GY6, especially engines from the 152QMI / 157QMJ family.

STEP 3 – CHECK YOUR CVT CONFIGURATION

Long-case scooters frequently have 12" or 13" rear wheels, while shorter cases are frequently found with smaller wheels.

This is only a general identification guide and should NOT override the belt number printed on your old belt.

WHAT DOES 842-20-30 MEAN?

842 – Approximately 842mm belt length

20 – Approximately 20mm top width

30 – 30° belt groove / V-angle specification

Correct belt dimensions are important for proper variator travel, acceleration, gearing and CVT operation.

IMPORTANT FITMENT WARNING

NOT ALL CHINESE 150cc SCOOTERS USE AN 842-20-30 BELT.

Even if your scooter is:

• TaoTao

• Wolf

• Ice Bear

• Jonway

• Roketa

• SUNL

• Tank

• Peace

• BMS

• ZNEN

• Gator

• Or another GY6-powered brand

YOU STILL NEED TO VERIFY YOUR BELT SIZE.

The same manufacturer may use several different engines and CVT configurations across different models and production years.

PLEASE MATCH YOUR OLD BELT NUMBER TO 842-20-30 BEFORE ORDERING. WHEN SHOULD YOUR CVT BELT BE REPLACED?

Consider replacing the belt if you notice:

• Cracking

• Fraying

• Glazing

• Missing or damaged cogs

• Excessive belt dust

• Reduced belt width

• Slipping

• Poor acceleration

• Reduced top speed

• Inconsistent CVT performance

• Visible deterioration

PACKAGE CONTENTS

1 × BANDO 842-20-30 CVT Drive Belt

PLEASE NOTE:

ITEM DOES NOT INCLUDE THE RED & WHITE BANDO SLEEVE.

Belt only.

PLEASE VERIFY BEFORE ORDERING

BELT SIZE:

842-20-30

COMMON ENGINE FAMILY:

GY6 152QMI / 157QMJ LONG CASE

COMMON CONFIGURATION:

125cc / 150cc LONG-CASE GY6

PLEASE MATCH YOUR OLD BELT NUMBERS TO THIS LISTING.

NOT ALL GY6 ENGINES OR CHINESE 150cc SCOOTERS USE THE SAME CVT BELT.