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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Replacement Kit Extra 1000cc
99mm Plug & Play

BMW R 100/7, R 100S, R 100RS, R 100RT
Up to 9/1980

Please inform me as soon as the product is available again.

€1,159.00

Prices incl. VAT, plus shipping costs

  • 1100105
The Replacement Kit Extra provides the BMWR 100 models up to 1980 with advantages identical to... more
Replacement Kit Extra 1000cc
99mm Plug & Play
The Replacement Kit Extra provides the BMWR 100 models up to 1980 with advantages identical to those of the standard Replacment Kit.
It contains, however in addition, four already pressed-in stainless steel push rod protection tubes. These stainless steel parts have the advantage over the standard products that they are supplied absolutely rust free. (For all models from year 9/1975 on, engine block drilled out to 99mm).

Top quality.
Small production runs.
Engineered in Germany.
Made in Italy.

Siebenrock product
Each original Siebenrock product bears this seal that guarantees you the highest quality possible, consistently optimized down to the last detail.

With MOT/TÜV approval and installation instruction.
Price for set.

For BMW classic airhead models R 100/7, R 100S, R 100RS, R 100RT from 9/1975 up to 9/1980.

TIP
Order at the same time a set of gaskets (art. no. 1100102), in OEM quality, to complete the fitting of the Replacement Kit Extra.

To provide the engine oil with the appropriate cooling, we also recommend, the fitting of an additional oil sump spacer ring or an oil cooler kit.
Compare art. no. 1142400, 1113100, 1113120, 1113130, 1113427.

Fast-revving, a lively response and, last but not least, a really powerful standing-start torque can be achieved in these motorcycles from 9/1978 on by the use of a Siebenrock asymmetric camshaft (art. no. 1131800).

Information on product safety
Fits for BMW R2V: R 100 up to 84
Downloads "Replacement Kit Extra 1000cc[br]99mm Plug & Play"
Read, write and discuss reviews... more
Customer evaluation for "Replacement Kit Extra 1000cc[br]99mm Plug & Play"
4 Jun 2025

Quality upgrade when considering reboring/resleaving a pre1980 R100

Mt 1977 RS suffered a major issue which resulted in a new piston and resleave being required

I came across the Siebenrock site and decided to go for the kit rather than use used pistons (new ones not available) and a resleave

The kit is indeed 'plug and play'. Parts are of excellent quality

Bike is definitely smoother and revs better than before. Stainless steel push rod tubes look great

3 Jun 2021

All mounted

Thank you, but I purchased a set through a company in California who had stock.

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Artikelbild Cylinder gasket Set
Up to 9/1980
For Power Kit 1000cc, Replacement Kit
1000cc, BMW R 100 models up to 9/80
€44.60
Prices incl. VAT, plus shipping costs
Part no. 1100102
Artikelbild Oil pan gasket
BMW 2-valve Boxer models
€6.95
Prices incl. VAT, plus shipping costs
Part no. 1113427
Artikelbild Timing chain
With chain Duplex
BMW /5, /6 and /7 models
€39.00
Prices incl. VAT, plus shipping costs
Part no. 1131258
Artikelbild Oil pan distance ring
BMW 2-valve Boxer models
€111.00 €139.00
Prices incl. VAT, plus shipping costs
Part no. 1113100
Artikelbild Fuel tap
Right side
BMW 2-valve Boxer models

€49.50
Prices incl. VAT, plus shipping costs
Part no. 1612114
1107422_1 Engine gasket Set
From 9/1976 up to 9/1978
BMW R 100/7, R 100S, R 100RS, R 100RT
€129.00
Prices incl. VAT, plus shipping costs
Part no. 1107422
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 Valve cover Classic
BMW 2-valve Boxer models
€44.00 €49.75
Prices incl. VAT, plus shipping costs
Part no. 1112240
Artikelbild Valve cover gasket
BMW 2-valve Boxer models
€3.95
Prices incl. VAT, plus shipping costs
Part no. 1112426
Artikelbild Bearing shell conrod
BMW 2v Boxer models
Standard sized
€9.99 €12.50
Prices incl. VAT, plus shipping costs
Part no. 1124460
Artikelbild Alternator rotor
New part
BMW 2-valve Boxer models

€114.65
Prices incl. VAT, plus shipping costs
Part no. 1231641
Artikelbild Fuel tap
Left side
BMW 2-valve Boxer models

€49.50
Prices incl. VAT, plus shipping costs
Part no. 1612113
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 Float chamber gasket
BING carburator
64/26, 64/28, 64/32, 94/40
BMW 2-valve Boxer models
€6.50
Prices incl. VAT, plus shipping costs
Part no. 1311764
Artikelbild O-Ring seal cylinder base
BMW 2V Boxer models
Small
€1.10
Prices incl. VAT, plus shipping costs
Part no. 1111141
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
Artikelbild Valve guide
BMW 2V Boxer models
Not for R 45 and R 65
€14.30
Prices incl. VAT, plus shipping costs
Part no. 1112708
Artikelbild Brake line stainless steel
With dual disc brake
BMW /6, /7 models up to 9/80
€88.50
Prices incl. VAT, plus shipping costs
Part no. 3432699
Artikelbild Exhaust star nut
BMW /7, Monoelver, Paralever models
With short fins
€37.20
Prices incl. VAT, plus shipping costs
Part no. 1821721
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
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 Star Nut Wrench
BMW 2-valve Boxer models
In shop quality
€49.35
Prices incl. VAT, plus shipping costs
Part no. 1821699
3410490_1 Brake disc kit 320mm
With adapter
BMW R 80GS, R 80GS PD, R 100GS, R 100GS PD, R 80GS Basic

€349.00
Prices incl. VAT, plus shipping costs
Part no. 3410490
Artikelbild O-Ring seal cylinder base
BMW 2-valve Boxer models
Large
€4.25
Prices incl. VAT, plus shipping costs
Part no. 1111567
Artikelbild Valve Exhaust
40mm
BMW R 80, R 90, R 100 models
45°
€58.00
Prices incl. VAT, plus shipping costs
Part no. 1134837
Artikelbild Tension springs Set
Oil pan distance ring
BMW 2v Boxer models
€18.50
Prices incl. VAT, plus shipping costs
Part no. 1113103
1821625_1 Clamp
38mm
BMW R 65GS, R 80G/S, R 80ST

€18.60
Prices incl. VAT, plus shipping costs
Part no. 1821625
1821577_1 Clamp
48mm
BMW R 65GS, R 80G/S, R 80ST

€18.60
Prices incl. VAT, plus shipping costs
Part no. 1821577
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 Ball bearing
BMW 2V Boxer models
For crankshaft front
€15.90
Prices incl. VAT, plus shipping costs
Part no. 0711722
Artikelbild Transmission bearing Set
BMW 2-vakve Boxer models
5-speed gearbox
€78.00
Prices incl. VAT, plus shipping costs
Part no. 2312999
Artikelbild Pressure plate clutch
BMW /5, /6,/7 models up to 9/80
€129.00
Prices incl. VAT, plus shipping costs
Part no. 2121801
Artikelbild Speedometer reset button cover
BMW 2-valve Boxer models
€9.85
Prices incl. VAT, plus shipping costs
Part no. 6212303
Artikelbild Valve Intake
44mm
BMW R 100 models
€25.90
Prices incl. VAT, plus shipping costs
Part no. 1134751
Artikelbild Oil pressure switch
BMW 2v Boxer models from /6 on
€12.95
Prices incl. VAT, plus shipping costs
Part no. 6131414
Artikelbild Simplex chain
With master link
BMW 2v Boxer models from 9/78 on
€32.95
Prices incl. VAT, plus shipping costs
Part no. 1131934
Artikelbild Fork tube seal
BMW 2-valve Boxer models
€6.95
Prices incl. VAT, plus shipping costs
Part no. 3142001
Artikelbild Main bearing crankshaft
BMW 2-valve Boxer models
Standard red
€39.50
Prices incl. VAT, plus shipping costs
Part no. 1111155
1134176_1 Valve spring
BMW 2-valve Boxer models
€5.85
Prices incl. VAT, plus shipping costs
Part no. 1134176
Artikelbild Chain tensioner
Duplex
BMW /5, /6 and /7 models
€49.50
Prices incl. VAT, plus shipping costs
Part no. 1131455
Artikelbild Replacement Kit 1000cc 99mm
Plug & Play
BMW R 100/7, R 100RS, R 100RT
Up to 9/1980
€1,069.00
Prices incl. VAT, plus shipping costs
Part no. 1100104
Artikelbild Replacement Kit 1000cc
Plug & Play
BMW R 100, R 100CS, R 100RS, R 100RT, R 100GS, R 100R
From 9/1980 on
€1,049.00
Prices incl. VAT, plus shipping costs
Part no. 1100100
NEW
1101200_1 Big Bore Kit 1070cc "S"
BMW R 100 models from 9/80 on
Conrods 151,0 mm
€2,590.00
Prices incl. VAT, plus shipping costs
Part no. 1101200
NEW
1101210_1 Big Bore Kit 1070cc "S" Touring
BMW R 100 models from 9/80 on
Conrods 150,5mm
€2,222.00 €2,650.00
Prices incl. VAT, plus shipping costs
Part no. 1101210
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
Artikelbild Power Kit 1000cc 99mm
Plug & Play
BMW R 75/6, R 75/7, R 80/7, R 90/6, R 90S
€888.00 €1,069.00
Prices incl. VAT, plus shipping costs
Part no. 1100084
Artikelbild Piston
Replacement Kit 1000cc
BMW R 100 models
€229.00
Prices incl. VAT, plus shipping costs
Part no. 1100121
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 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 Piston
Big Bore Kit "MAHLE"
BMW R 100 models
98mm complete with 3 rings
€399.00
Prices incl. VAT, plus shipping costs
Part no. 1109022
Artikelbild Conrod
Sieenrock Big Bore Kit Touring
150,5 mm
€309.00
Prices incl. VAT, plus shipping costs
Part no. 1109044
Artikelbild Oil cooler Kit
BMW 2v Boxer models
Centered position
€469.00
Prices incl. VAT, plus shipping costs
Part no. 1142400
Artikelbild Asymmetrical camshaft
BMW 2v Boxer models from 9/78 on
€329.00
Prices incl. VAT, plus shipping costs
Part no. 1131800
Artikelbild Piston
Power Kit 1000cc
BMW 2-valve Boxer models
€229.00
Prices incl. VAT, plus shipping costs
Part no. 1100120
Artikelbild Conrod
Siebenrock Big Bore Kit
151,0 mm
€272.00
Prices incl. VAT, plus shipping costs
Part no. 1109045
Artikelbild Cylinder
Big Bore Kit "MAHLE"
98mm
€459.00
Prices incl. VAT, plus shipping costs
Part no. 1109010
Artikelbild Asymmetrical camshaft Kit
BMW 2v Boxer models from 9/78 on
€429.00
Prices incl. VAT, plus shipping costs
Part no. 1131804
11661002_1 Cylinder head Krauser
Left side
Krauser 4-valve / MKM

€0.00
Prices incl. VAT, plus shipping costs
Part no. 11661002
1812909_1 Silencer Hoske Set
Chrome
BMW R100S, R 100RS, R 100RT
40mm


€333.00 €398.00
Prices incl. VAT, plus shipping costs
Part no. 1812909
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
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
3353111Y_1 Shock Set
BMW /5, /6 and /7 models
YSS Sport Black edition
€549.00
Prices incl. VAT, plus shipping costs
Part no. 3353111Y
BMW R 80RT BMW R 80RT
€5,950.00
1109015_1 Piston ring Tension belt
For Power Kit, Replacement Kit and Big Bore Kit pistons
€25.90
Prices incl. VAT, plus shipping costs
Part no. 1109015
8121099_1 Oil funnel
BMW 2v Boxer
€7.77 €9.50
Prices incl. VAT, plus shipping costs
Part no. 8121099
Artikelbild Valve guide
BMW 2V Boxer models
Not for R 45 and R 65
€14.30
Prices incl. VAT, plus shipping costs
Part no. 1112708
Artikelbild Cylinder with stud bolts
From 750cc on up to 9/1980
Power Kit 1000cc, Replacement Kit 1000cc, and BMW 2v models
€329.00
Prices incl. VAT, plus shipping costs
Part no. 1100111
Artikelbild Gear wheel 5th gear
Long 5th gear Wiith "X"
BMW 2v Boxer models from 4/82 on

€159.50
Prices incl. VAT, plus shipping costs
Part no. 2322993
3353110Y_1 Shock Set
BMW /5, /6 and /7 models
YSS Black edition
€389.00
Prices incl. VAT, plus shipping costs
Part no. 3353110Y
NEW
1109210_1 Cylinder "S"
Big Bore Kit "S"
98mm
€459.00
Prices incl. VAT, plus shipping costs
Part no. 1109210
1109016_1 Piston Ring Tensioner Pliers
For Power Kit, Replacement Kit, Big Bore Kit
€89.90
Prices incl. VAT, plus shipping costs
Part no. 1109016
Artikelbild Fuel filler cap
Lockable
BMW 2-valve Boxer models
€169.00
Prices incl. VAT, plus shipping costs
Part no. 5125125
Artikelbild Tension springs Set
Oil pan distance ring
BMW 2v Boxer models
€18.50
Prices incl. VAT, plus shipping costs
Part no. 1113103
Artikelbild Oil pan distance ring
Enduro Black
BMW R 65GS, R 80G/S, R 80GS, R 100GS, R 80GS Basic

€279.00
Prices incl. VAT, plus shipping costs
Part no. 1113120S
1131183_1 Chain tensioner Set
Simplex
BMW 2V Boxer models
€89.50
Prices incl. VAT, plus shipping costs
Part no. 1131183
Artikelbild Gasket Set
For Karcoma fuel tap
BMW 2-valve Boxer models

€12.95
Prices incl. VAT, plus shipping costs
Part no. 1612869
Artikelbild Power Kit 860cc
Plug & Play
BMW R 65 9/80 on, R 65LS, R 65 Monolever 48hp
€888.00 €1,069.00
Prices incl. VAT, plus shipping costs
Part no. 1100870
Artikelbild Piston
Siebenrock Power Kit 860cc
BMW R 45 models and R 65 with 27hp/20KW
€229.00
Prices incl. VAT, plus shipping costs
Part no. 1100867
Artikelbild Valve cover Extra
BMW 2v Boxer models
External Screws
€55.00 €65.00
Prices incl. VAT, plus shipping costs
Part no. 1112241
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