Part # 2121-81-95-all
Clutch Service Kit 1981+ Models

Clutch Service Kit 1981+ Models

Boxer2valve's clutch service kit contains all the parts you will need to replace the clutch components on your 1981+ Classic BMW Airhead

This kit includes the following:

Pressure ring for clutch

This pressure Ring is made by the OEM supplier Sachs and equivalent to the BMW supplied part in every way.

Whenever you replace your clutch disk, it is imperative that you also replace this part to ensure that you get the longest life and best performance out of your clutch. Also replace the Pressure Plate and the Diaphragm Spring

Be sure to thoroughly clean the contact area before installing and always use new bolts!

Fits all 2 valve twins from 09/80 production onward and all K75 models

Equivalent to 21 21 1 457 280

Clutch Disk OEM Sachs 2V 1981-on

This clutch disk is made by the original supplier to BMW SACHS. It is identical to the original BMW part.

Important Note: When replacing your clutch, it's not enough to just replace the disk! It is imperative that you also replace the pressure plates and the diaphragm spring.

it's also important that your clutch cable is properly adjusted. This is important so that the clutch actuation mechanism has full movement. Failure to perform these tasks may result in premature failure, wasted effort and money.

Fits R 2 Valve models from 9/1980 production

Same as 21 21 1 451 512

Clutch Pressure Plate from 9/1980

This pressure plate is made by the OEM supplier Sachs and equivalent to the BMW supplied part in every way.

Whenever you replace your clutch disk, it is imperative that you also replace this part to ensure that you get the longest life and best performance out of your clutch.

Be sure to thoroughly clean the contact area before installing and always use new bolts!

Fits all 2 valve twins from 09/80 production onward

Diaphragm Spring 81-on

This Diaphragm Spring is made by the OEM supplier Sachs and equivalent to the BMW supplied part in every way.

Whenever you replace your clutch disk, it is imperative that you also replace this part to ensure that you get the longest life and best performance out of your clutch. Also replace the Pressure Plate and the Pressure Ring and always use new bolts!

Fits all 2 valve twins from 09/80 production onward and also R850 and R1100 (except S) models after 12/97 production.

Bolt for clutch disc

Replacing the clutch bolts every time the clutch is removed or replaced is the right thing to do.

These are the replacement bolts for all clutch assemblies from 09/80 production onward. 6 are required.

Equivalent to 21 21 1 338 680

Serrated lock washer

Along with the clutch bolts, these serrated washers must be replaced each and every time the clutch bolts are removed for any reason.

Equivalent to 21 21 1 242 377