40 Years of Siebenrock – A Heartfelt Thank You!

 

Since 1985, the name Siebenrock has stood for quality, technical expertise, and genuine passion for classic BMW motorcycles.
Our success is built on continuous development, solid engineering knowledge,

and the ambition to create products that impress with functionality and durability.

  

A major milestone – and one we’d love to celebrate with you!

 

From July 4 to 16, 2025, enjoy a special anniversary discount on selected Siebenrock items in our online shop – it’s worth a look!

 

Or come see us in person at the BMW Motorrad Days in Garmisch-PartenkirchenJuly 4–6, 2025.

Visit our stand and receive an exclusive anniversary gift – a little surprise from us to you!

 

 Your Siebenrock Team

 

While supplies last.

 

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Pressure ring
Exhaust 38mm

BMW 2-vakve Boxer models

Artikelbild
€9.90

Prices incl. VAT, plus shipping costs

Ready to ship today, Delivery time appr. 2-4 workdays within Germany

  • 1821585
This is an OEM quality replacement pressure ring for the exhaust connection at the cylinder head.... more
Pressure ring
Exhaust 38mm
This is an OEM quality replacement pressure ring for the exhaust connection at the cylinder head. Fits all 2V twins with 38mm headers.

Sold each. One per side needed.

Spare part for the classic BMW airhead models
R 50/5, R 60/5, R 75/5, R 60/6, R 75/6, R 90/6, R 90S, R 80/7, R 80RT, R 100/7, R 100S, R 100RS, R 100RT, R 100S, R 100CS
R 80G/S, R 80ST
Paralever models R 80GS, R 100GS, R 80GS PD, R 100GS PD, R 80R, R 100R, R 100R Mystic, R 80GS Basic
Monolever models R 65, R 80, R 80RT, R 100RS, R 100RT

Compare 18211230585 / 18-21-1-230-585

Information on product safety
Fits for BMW R2V: R 50/5, R 60/5, R 75/5, R 60/6, R 75/6, R 90/6, R 90S, R 60/7, R 75/7, R 80 up to 84, R 100 up to 84, R 80 Mono from 85 on, R 100 RS/RT Mono from 87 on, R 65GS 87-92, R 80 G/S,ST 80-87, R 80GS 87-96, R 100GS 87-96, R 80R 91-95, R 100R 91-95
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Artikelbild Manifold
38mm Chrome
BMW /5, /6, /7 models up to 9/80
Right side


€186.00
Prices incl. VAT, plus shipping costs
Part no. 1811433
Artikelbild Manifold
38mm Chrome
BMW /5, /6, /7 models up to 9/80
Left side


€186.00
Prices incl. VAT, plus shipping costs
Part no. 1811434
Artikelbild Manifold
Chrome
BMW R 80ST
Left side



€219.00
Prices incl. VAT, plus shipping costs
Part no. 1811843
Artikelbild Clamping ring
38mm
BMW 2-valve Boxer models

€11.95
Prices incl. VAT, plus shipping costs
Part no. 1821586
Artikelbild Exhaust star nut
BMW /7, Monoelver, Paralever models
With short fins
€37.20
Prices incl. VAT, plus shipping costs
Part no. 1821721
Artikelbild Valve cover gasket
BMW 2-valve Boxer models
€3.95
Prices incl. VAT, plus shipping costs
Part no. 1112426
Artikelbild Exhaust nut
BMW /5, /6 models
With long fins
€29.50
Prices incl. VAT, plus shipping costs
Part no. 1811270
Artikelbild Idle switch
For 5-speed gearbox
BMW 2v Boxer models from 9/75 on

€19.95
Prices incl. VAT, plus shipping costs
Part no. 6131097
Artikelbild Oil pan gasket
BMW 2-valve Boxer models
€6.95
Prices incl. VAT, plus shipping costs
Part no. 1113427
Artikelbild Fuel tap
Left side
BMW 2-valve Boxer models

€49.50
Prices incl. VAT, plus shipping costs
Part no. 1612113
Artikelbild Oilfilter Set
Mahle
BMW 2v Boxer models without oilcooler
OX37D two-piece
€14.25
Prices incl. VAT, plus shipping costs
Part no. 1142145
Artikelbild Sealing rings for inspection
BMW 2V Boxer models
€4.75
Prices incl. VAT, plus shipping costs
Part no. 0711333
Artikelbild Star Nut Wrench
BMW 2-valve Boxer models
In shop quality
€49.35
Prices incl. VAT, plus shipping costs
Part no. 1821699
Artikelbild Cap nut stainless steel
BMW 2-valve Boxer models
For valve cover
€6.90
Prices incl. VAT, plus shipping costs
Part no. 1112330
Artikelbild Oilfilter Set
Mahle
BMW 2v Boxer models with oilcooler
OX36D two-piece
€14.90
Prices incl. VAT, plus shipping costs
Part no. 1142146
Artikelbild Oil drain plug engine
BMW 2-valve Boxer models
Magnetic M 18x1,5
€8.75
Prices incl. VAT, plus shipping costs
Part no. 0711143
Artikelbild Float
BING carburator 64/26, 64/28, 64/32, 94/40
BMW 2-valve Boxer models
€21.15
Prices incl. VAT, plus shipping costs
Part no. 1311766
0758376_1 Silicone sealing compound
0.03 Liter (€495.00 / 1 Liter)
BMW 2V Boxer models
Drei Bond
Content 0.03 Liter (€495.00 * / 1 Liter)
€14.85
Prices incl. VAT, plus shipping costs
Part no. 0758376
Artikelbild Fuel tap
Right side
BMW 2-valve Boxer models

€49.50
Prices incl. VAT, plus shipping costs
Part no. 1612114
Artikelbild Pushrod tube
18mm
BMW 2v Boxer models from 9/75 on
Stainless steel
€24.90
Prices incl. VAT, plus shipping costs
Part no. 1111904
Artikelbild Bearing shell conrod
BMW 2v Boxer models
Standard sized
€9.99 €12.50
Prices incl. VAT, plus shipping costs
Part no. 1124460
Artikelbild Cylinder gasket Set
From 9/1980 on
For Power Kit 1000cc, Replacement Kit
1000cc, BMW R 100 models from 9/80 on
€47.50
Prices incl. VAT, plus shipping costs
Part no. 1100101
Artikelbild Airfilter
Mahle
BMW 2-valve Boxer models from 9/80 on
LX56
€25.25
Prices incl. VAT, plus shipping costs
Part no. 1372080
Artikelbild Swing Arm Boot
BMW 2-valve Boxer models
€19.95
Prices incl. VAT, plus shipping costs
Part no. 3317304
1821625_1 Clamp
38mm
BMW R 65GS, R 80G/S, R 80ST

€18.60
Prices incl. VAT, plus shipping costs
Part no. 1821625
Artikelbild Oil pan distance ring
BMW 2-valve Boxer models
€111.00 €139.00
Prices incl. VAT, plus shipping costs
Part no. 1113100
Artikelbild Pushrod tube seal
18mm
BMW 2v Boxer models from 9/75 on
€3.95
Prices incl. VAT, plus shipping costs
Part no. 1132995
Artikelbild Clutch boot
Clutch pressure bearing
For BMW 2V, 4V, K models
€19.50
Prices incl. VAT, plus shipping costs
Part no. 2313731
Artikelbild Cross pipe
Chrome
BMW /5, /6, /7 models
€49.50
Prices incl. VAT, plus shipping costs
Part no. 1811638
Artikelbild Steering head bearing
BMW 2V Boxer, K 2V, K 4V, F models
€21.90
Prices incl. VAT, plus shipping costs
Part no. 0711070
Artikelbild Oil pressure switch
BMW 2v Boxer models from /6 on
€12.95
Prices incl. VAT, plus shipping costs
Part no. 6131414
Artikelbild Strainer Fuel tap
Karcoma
BMW 2-valve Boxer models
€9.50
Prices incl. VAT, plus shipping costs
Part no. 1612112
Artikelbild Shaft seal
Transmission Input 5 speed
BMW 2-valve Boxer models

€9.95
Prices incl. VAT, plus shipping costs
Part no. 2312726
Artikelbild Pivot cape
For swingarm
BMW 2-valve Boxer models

€7.50
Prices incl. VAT, plus shipping costs
Part no. 3317296
Artikelbild Brush Set
With connector
BMW 2-valve Boxer models
€9.50
Prices incl. VAT, plus shipping costs
Part no. 1231480S
Artikelbild Paper gasket
For rear drive shaft housing
BMW2v Boxer models up to 9/84
€2.70
Prices incl. VAT, plus shipping costs
Part no. 3311098
Artikelbild Clutch disc
MCC600 Lucas
BMW 2v Boxer models from 9/80 on

€89.50
Prices incl. VAT, plus shipping costs
Part no. 2121512L
Artikelbild Gasket idle switch
5-speed transmission
BMW 2v Boxer models

€1.35
Prices incl. VAT, plus shipping costs
Part no. 6131262
Artikelbild Fuel hose braided
6mm, fabric-covered
BMW 2-valve Boxer models

€9.50
Prices incl. VAT, plus shipping costs
Part no. 1311827
Artikelbild Carb gasket Set

BING carburator
64/26, 64/28, 64/32, 94/40
BMW 2-valve Boxer models
Without diaphragm
€19.95
Prices incl. VAT, plus shipping costs
Part no. 1311951
Artikelbild Valve cover Classic
BMW 2-valve Boxer models
€44.00 €49.75
Prices incl. VAT, plus shipping costs
Part no. 1112240
Artikelbild Airfilter
Mahle
BMW 2-valve Boxer models up to 9/80
LX194
€13.25
Prices incl. VAT, plus shipping costs
Part no. 1372382
Artikelbild Bolt
For clutch disc
BMW 2v Boxer models from 9/80 on
€3.25
Prices incl. VAT, plus shipping costs
Part no. 2121680
Artikelbild Clamping ring
38mm
BMW 2-valve Boxer models

€11.95
Prices incl. VAT, plus shipping costs
Part no. 1821586
Artikelbild Exhaust star nut
BMW /7, Monoelver, Paralever models
With short fins
€37.20
Prices incl. VAT, plus shipping costs
Part no. 1821721
Artikelbild Cylinder gasket Set
From 9/1980 on
For Power Kit 1000cc, Replacement Kit
1000cc, BMW R 100 models from 9/80 on
€47.50
Prices incl. VAT, plus shipping costs
Part no. 1100101
Artikelbild Bearing shell conrod
BMW 2v Boxer models
Standard sized
€9.99 €12.50
Prices incl. VAT, plus shipping costs
Part no. 1124460
Artikelbild Speedometer cable boot Gearbox input
BMW 2-valve Boxer models
€7.90
Prices incl. VAT, plus shipping costs
Part no. 6113170
Artikelbild Silencer Set
38mm Chrome
BMW /6 und /7 models

€398.00
Prices incl. VAT, plus shipping costs
Part no. 1811214
Artikelbild Asymmetrical camshaft Kit
BMW 2v Boxer models from 9/78 on
€429.00
Prices incl. VAT, plus shipping costs
Part no. 1131804
Artikelbild Power Kit Extra 1000cc
Stainless steel push rod tubes
BMW R 80, R 80RT, R 80G/S, R 80ST, R 80GS, R 80R
€999.00 €1,139.00
Prices incl. VAT, plus shipping costs
Part no. 1100082
Artikelbild Cross pipe
Chrome
BMW /5, /6, /7 models
€49.50
Prices incl. VAT, plus shipping costs
Part no. 1811638
Artikelbild Star Nut Wrench
BMW 2-valve Boxer models
In shop quality
€49.35
Prices incl. VAT, plus shipping costs
Part no. 1821699
1812908_1 Silencer Hoske Set
Chrome
BMW /5, /6, /7 models
38mm


€333.00 €398.00
Prices incl. VAT, plus shipping costs
Part no. 1812908
Artikelbild Diaphragm spring Heavy duty
BMW /5, /6, /7 models
€89.90
Prices incl. VAT, plus shipping costs
Part no. 2121035
NEW
Artikelbild Bearing shell conrod
+0,02 Standard sized
BMW 2V Boxer models
€12.50
Prices incl. VAT, plus shipping costs
Part no. 1124461
NEW
3421233_1 Brakemaster cylinder
Repair kit
BMW R 100 models
Rear
€44.95
Prices incl. VAT, plus shipping costs
Part no. 3421233
NEW
1821656_1 Gasket Hoske exhaust
40mm -->38mm
For manifold 38mm
BMW /5, /6, /7 models
€19.70
Prices incl. VAT, plus shipping costs
Part no. 1821656
Artikelbild Sealing rings for inspection
BMW 2V Boxer models
€4.75
Prices incl. VAT, plus shipping costs
Part no. 0711333
Artikelbild Sticker 750cc battery cover
BMW R 75/5, R 75/6, R 75/7
€11.80
Prices incl. VAT, plus shipping costs
Part no. 4663327
1131183_1 Chain tensioner Set
Simplex
BMW 2V Boxer models
€89.50
Prices incl. VAT, plus shipping costs
Part no. 1131183
Artikelbild Valve intake
40mm
BMW R 65, R 65LS, R 65GS
7mm shaft
€25.90
Prices incl. VAT, plus shipping costs
Part no. 1134903
Artikelbild Oilfilter Set
Mahle
BMW 2v Boxer models without oilcooler
OX37D two-piece
€14.25
Prices incl. VAT, plus shipping costs
Part no. 1142145
Artikelbild Oil drain plug engine
BMW 2-valve Boxer models
Magnetic M 18x1,5
€8.75
Prices incl. VAT, plus shipping costs
Part no. 0711143
Artikelbild Power Kit 1000cc
Plug & Play
BMW R 80, R 80RT, R 80G/S, R 80ST, R 80GS, R 80R
€888.00 €1,049.00
Prices incl. VAT, plus shipping costs
Part no. 1100080
Artikelbild Cylinder with stud bolts
From 9/1980 on
Power Kit 1000cc Replacement Kit 100cc and BMW 2v models
€315.00
Prices incl. VAT, plus shipping costs
Part no. 1100110
Artikelbild Shaft seal
Transmission output 5 speed
BMW 2-valve Boxer models

€14.95
Prices incl. VAT, plus shipping costs
Part no. 2312681
Artikelbild Power Kit Extra 1000cc 97mm
Plug & Play
BMW R 75/5, R 75/6, R 90/6 , R 90S up to 9/7
€999.00 €1,159.00
Prices incl. VAT, plus shipping costs
Part no. 1100072
Artikelbild Power Kit Extra 1000cc 99mm
Stainless steel pushrod tubes
BMW R 75/6, R 90/6, R 90S, R 75/7, R 80/7, R 80RT

€999.00 €1,159.00
Prices incl. VAT, plus shipping costs
Part no. 1100085
1100103_1 Replacement Kit Extra 1000cc
Plug & Play
BMW R 100, R 100CS, R 100RS, R 100RT, R 100GS, R 100R
From 09/180 on
€1,139.00
Prices incl. VAT, plus shipping costs
Part no. 1100103
Artikelbild Crankshaft seal
BMW 2-valve models
Rear
€21.95
Prices incl. VAT, plus shipping costs
Part no. 1111739
Artikelbild O-Ring seal cylinder base
BMW 2-valve Boxer models
Large
€4.25
Prices incl. VAT, plus shipping costs
Part no. 1111567
Artikelbild Oil pan gasket
BMW 2-valve Boxer models
€6.95
Prices incl. VAT, plus shipping costs
Part no. 1113427
Artikelbild Shaft seal
Transmission output
BMW Paralever models
€19.80
Prices incl. VAT, plus shipping costs
Part no. 2312514
Artikelbild Brake master cylinder 16mm
BMWBoxer models from 9/80 up to 9/81
€249.50
Prices incl. VAT, plus shipping costs
Part no. 3272365
Artikelbild Shift lever rubber
5-speed gearbox
BMW 2v Boxer models from 9/73 on

€5.90
Prices incl. VAT, plus shipping costs
Part no. 2331097
3353911G_1 Shock YSS
BMW R 80GS, R 100GS
"GS Sport"
€498.00
Prices incl. VAT, plus shipping costs
Part no. 3353911G
3353110Y_1 Shock Set
BMW /5, /6 and /7 models
YSS Black edition
€389.00
Prices incl. VAT, plus shipping costs
Part no. 3353110Y
3353911Y_1 Shock YSS
BMW R 80GS, R 100GS
"GS Sport"
€469.00
Prices incl. VAT, plus shipping costs
Part no. 3353911Y
Artikelbild Fuel filler cap 101 style
BMW 2v Boxer models
€169.00
Prices incl. VAT, plus shipping costs
Part no. 5125119S
5253843_1 Single seat cover G/S
Simple reproduction
BMW R 65GS, R 80G/S, R 80G/S PD, R 80ST, R 80GS Basic
€59.00
Prices incl. VAT, plus shipping costs
Part no. 5253843
5253335_1 Single seat GS
BMW R 80GS, R 100GS, R 80GSPD, R 100GSPD
€335.00
Prices incl. VAT, plus shipping costs
Part no. 5253335
5253835_1 Seat S
BMW R 80, R100 models from 9/83 on
€595.00
Prices incl. VAT, plus shipping costs
Part no. 5253835
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