MTX 420HD-126 Gold Heavy Duty Drive Chain
This final drive chain is the correct length and pitch for standard factory fitted sprockets.
This may not be the most suitable grade of final drive (roller) chain for your machine, we suggest selecting the correct grade recommended in your workshop manual.
Some classic Brit's and classic Jap bikes may need a spacer behind the front sprocket if using an O-ring or X-ring chain because these chains are slightly wider and may rub against your casing.
There is plenty of advice on the internet about this modification in forums and elsewhere.
- If you have odd sprockets with fewer or more teeth than standard you will have to select equivalent pitch and suitable length from our drive chain category. Always select a longer chain if in doubt, you can then cut it down with one of our chain tools, its not so simple to add links if its too short!
- Always go up or down in even numbers of teeth as odd numbers will make selecting the length of chain to suit, much more difficult for beginers
Chain Type Guide:
- Standard chain is a regular chain used on smaller bikes
- Heavy Duty is mostly aimed for midsized road bikes, most MX bikes can run on HD chain
- O-ring is a sealed chain mainly used on large road bikes. It's also used on some MX bikes, especially for Enduro use as they retain lubrication better than HD chains
- X-ring is a step up from O-ring, they hold lubrication even longer therefore providing less friction and will last longer when compared to a matching brand. An X-ring seal has two lips to seal, to keep lube in and dirt out as it sits flat, it seals better than the O-ring seal
- The life of O-ring chain is usually determined by the durability of the O-ring. To improve the durability, there should be an oil film on the O-rings at all times. Even though it is a sealed chain, lubrication is required to extend its working life
- However, make no mistake, a more expensive O-ring chain can easily out last a cheaper X-ring chain
- We now stock the latest grades of chain including the Z-ring from WRP, UWV narrow UW-ring (Perfect for large classics), XW-ring heavy duty and super heavy duty, XSO RX-ring heavy duty all from RK Takasago Chain
Before You Place Your Order...
- Note the image may not be exactly as item received and any slight difference will not be inferior or effect performance
- Check the fitment list to ensure this item will fit your vehicle
- When we refer to right or left, this is as you sit on your vehicle
- To find part by SKU, enter the number without "SKU" into the search box
- Products containing any fluid or hazardous materials, aerosols, batteries including large lithium jump starters cannot be shipped overseas due to courier restrictions although we can ship UK offshore and Scottish Highlands at higher shipping rates
- EU customers should check with your countries customs office to determine what additional costs such as tax or Import duties will be prior to purchasing. These charges are normally collected by the delivery company or when you pick the item up, they are not included in the item price or shipping charge on this website
All parts and accessories are brand new and include VAT where applicable.
Most parts are pattern or aftermarket although some will be genuine but are not always stated as being so.
The use of motorcycle manufacturers' names is for reference purposes only. We do not imply that the products we sell are made by or with the permission of the names listed.
Compatible Aprilia Models
- Aprilia Classic 50 1993-1994
- Aprilia MX50 Supermoto 2003-2005
- Aprilia RC50 U 1993-1994
- Aprilia Red Rose 50 1993-1994
- Aprilia RX50 1998-2004
- Aprilia RX50 Mini 2004
- Aprilia RX50 Racing 2003-2005
Compatible Beta Models
- Beta RR50 1999-2005
- Beta RR50 Motard 2005-2009
- Beta RR50 Motard Track 2008-2009
- Beta RR50 Racing 2009
- Beta RR50 Supermoto 1999-2005
Compatible Honda Models
- Honda CR80 RB (Big Wheel) 1996-2002
- Honda CRF150 RB (Big Wheel) 2007-2014
- Honda NSR75 (NS-1) 1992-2000
Compatible Kawasaki Models
- Kawasaki KX100 A 1989-1990
- Kawasaki KX100 N 1988
- Kawasaki KX80 J LW 1986-1987
- Kawasaki KX80 N LW 1988-1990
Compatible KTM Models
- KTM 60 SX 1998-2000
Compatible Malaguti Models
- Malaguti Drakon NKD50 2005-2009
- Malaguti XTM50 Enduro 2003-2010
Compatible MBK Models
- MBK X-Limit Enduro 50 2003-2006
- MBK X-Limit Supermoto 50 2003-2006
Compatible Motorhispania Models
- Motorhispania Furia Max Enduro 50 2006-2010
- Motorhispania Furia Max Supermoto 50 2006-2010
- Motorhispania RYZ50 Enduro 2005-2010
- Motorhispania RYZ50 Pro Racing Enduro 2006-2010
- Motorhispania RYZ50 Pro Racing Supermotard 2006-2010
- Motorhispania RYZ50 Pro Racing Urban Bike 2005-2010
- Motorhispania RYZ50 Supermotard 2006-2010
- Motorhispania RYZ50 Urban Bike 2005-2010
Compatible Peugeot Models
- Peugeot XP6 Enduro 2003-2006
- Peugeot XP6 Supermoto 2003-2006
- Peugeot XP6 Top Road 2003-2006
- Peugeot XPS50 Street (17" Front Wheel) 2003-2004
Compatible Rieju Models
- Rieju MRX50 2005-2008
- Rieju MRX50 Pro 2004-2008
- Rieju NKD50 2007-2010
- Rieju RS2 FR (50cc) 2009-2010
- Rieju RS2 Pro (50cc) 2006-2009
- Rieju SMX125 (Cast Wheel) 2007-2008
- Rieju SMX125 2002-2007
- Rieju SMX50 2004-2008
- Rieju SMX50 Pro Street 2006-2008
- Rieju SMX50 Pro Supermotard 2004-2007
- Rieju Tango 125 2006-2010
- Rieju Tango 125 Motard 2008-2009
- Rieju Tango 50 2007-2010
- Rieju Tango Pro 125 2007-2010
Compatible Yamaha Models
- Yamaha DT50 R 2003-2008
- Yamaha DT50 X Supermotard 2003-2008
