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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Categories

Piston
Replacement Kit 1000cc

BMW R 100 models

Artikelbild
€229.00

Prices incl. VAT, plus shipping costs

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

  • 1100121
One forged piston complete with gudgeon pin and circlips. Top quality. Small production runs.... more
Piston
Replacement Kit 1000cc
One forged piston complete with gudgeon pin and circlips.

Top quality.
Small production runs.
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.

Please let us know the cylinder version, A or B!
Price per piece.

TIP
Matching piston rings articleno. 1125399.

Spare part for the classic BMW 2v Boxer models
R 100/7, R 100S, R 100CS, R 100RS, R 100RT
Monolever models R 100RS, R 100RT
Paralever models R 100GS, R 100R.

Information on product safety
Fits for BMW R2V: R 100 up to 84, R 100 RS/RT Mono from 87 on, R 100GS 87-96, R 100R 91-95
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Artikelbild Piston Ring Set
1000cc / 860cc
BMW 2V Boxer models
€37.95
Prices incl. VAT, plus shipping costs
Part no. 1125399
1100130_1 Gudgeon pin with circlips
For Siebenrock kits
Power Kit 1000cc, Power Kit 860cc
Replacement Kit 1000cc
€19.90
Prices incl. VAT, plus shipping costs
Part no. 1100130
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 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 O-Ring seal cylinder base
BMW 2-valve Boxer models
Large
€4.25
Prices incl. VAT, plus shipping costs
Part no. 1111567
Artikelbild O-Ring seal cylinder base
BMW 2V Boxer models
Small
€1.10
Prices incl. VAT, plus shipping costs
Part no. 1111141
Artikelbild Cylinder head gasket
BMW 2-valve Boxer 1000cc and
Power Kit 860cc, Power Kit 1000cc
€9.99 €12.90
Prices incl. VAT, plus shipping costs
Part no. 1112715
1134176_1 Valve spring
BMW 2-valve Boxer models
€5.85
Prices incl. VAT, plus shipping costs
Part no. 1134176
Artikelbild Alternator rotor
New part
BMW 2-valve Boxer models

€114.65
Prices incl. VAT, plus shipping costs
Part no. 1231641
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 Cylinder base gasket
Aluminium 99mm
BMW /5, /6, /7 models up to 9/80

€3.95
Prices incl. VAT, plus shipping costs
Part no. 1111001
Artikelbild Replacement Kit Extra 1000cc
99mm Plug & Play
BMW R 100/7, R 100S, R 100RS, R 100RT
Up to 9/1980
€1,159.00
Prices incl. VAT, plus shipping costs
Part no. 1100105
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 Swing Arm Boot
BMW 2-valve Boxer models
€19.95
Prices incl. VAT, plus shipping costs
Part no. 3317304
Artikelbild Clutch disc
BMW 2v Boxer models from 9/80 on
Sachs
€109.00
Prices incl. VAT, plus shipping costs
Part no. 2121512S
Artikelbild Button head rivet
6x25
BMW 2V Boxer models from /6 on
Pick-up gearing irear wheel
€1.70
Prices incl. VAT, plus shipping costs
Part no. 0711800
Artikelbild Gear shifter unit
Repair kit
BMW 2-valve Boxer models from 9/75 on
€27.25
Prices incl. VAT, plus shipping costs
Part no. 2331910
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 Tension springs Set
Oil pan distance ring
BMW 2v Boxer models
€18.50
Prices incl. VAT, plus shipping costs
Part no. 1113103
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 Valve keeper
BMW R 45, R 65 models
€1.95
Prices incl. VAT, plus shipping costs
Part no. 1134136
Artikelbild Valve guide
BMW R 45, R 65 models
€14.30
Prices incl. VAT, plus shipping costs
Part no. 1112709
Artikelbild Valve Exhaust
36mm
BMW R 65, R 65LS, R 65GS
7mm shaft
€38.50
Prices incl. VAT, plus shipping costs
Part no. 1134899
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 Gasket Set
Siebenrock Power Kit 860cc
BMW R 45, R 65 from 9/1980 on
€49.50
Prices incl. VAT, plus shipping costs
Part no. 1100863
Artikelbild Oil pan distance ring
BMW 2-valve Boxer models
€111.00 €139.00
Prices incl. VAT, plus shipping costs
Part no. 1113100
Artikelbild Engine gasket Set
From 9/1980 on
BMW R 100RS, R 100RT, R 100CS, R 100GS, R 100R
€129.00
Prices incl. VAT, plus shipping costs
Part no. 1100422
Artikelbild Camshaft gasket Set
BMW 2v Boxer models from 9/78 on
€18.60
Prices incl. VAT, plus shipping costs
Part no. 1114444
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 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 9/1975
Siebenrock Power Kit 1000cc 97mm

€329.00
Prices incl. VAT, plus shipping costs
Part no. 1100112
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 Ball bearing
BMW 2V Boxer models
For crankshaft front
€15.90
Prices incl. VAT, plus shipping costs
Part no. 0711722
Artikelbild Diaphragm spring
BMW 2-valve Boxer models from 9/80 on
€65.00
Prices incl. VAT, plus shipping costs
Part no. 2121353
Artikelbild Brush Set
Alternator
BMW 2-vave Boxer models

€5.70
Prices incl. VAT, plus shipping costs
Part no. 1231480
Artikelbild Clutch boot
Clutch pressure bearing
For BMW 2V, 4V, K models
€19.50
Prices incl. VAT, plus shipping costs
Part no. 2313731
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 Valve Intake
44mm
BMW R 100 models
€25.90
Prices incl. VAT, plus shipping costs
Part no. 1134751
Artikelbild Valve exhaust
40mm
BMW R 90, R 100 models
30° lead-free
€48.50
Prices incl. VAT, plus shipping costs
Part no. 1134285
Artikelbild Handlebar Flat
Chrome-plated 650mm
BMW 2-valve Boxer models
€92.50
Prices incl. VAT, plus shipping costs
Part no. 3271663
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
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 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
Artikelbild Replacement Kit Extra 1000cc
99mm Plug & Play
BMW R 100/7, R 100S, R 100RS, R 100RT
Up to 9/1980
€1,159.00
Prices incl. VAT, plus shipping costs
Part no. 1100105
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 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 Piston Ring Set
1000cc / 860cc
BMW 2V Boxer models
€37.95
Prices incl. VAT, plus shipping costs
Part no. 1125399
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
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
Artikelbild Piston
Siebenrock Power Kit 860cc
BMW R 65, R 65 Monolever
€229.00
Prices incl. VAT, plus shipping costs
Part no. 1100877
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 Valve cover Touring
BMW 2-valve Boxer models
With Oil filler opening
€109.50
Prices incl. VAT, plus shipping costs
Part no. 1112244
NEW
1109210_1 Cylinder "S"
Big Bore Kit "S"
98mm
€459.00
Prices incl. VAT, plus shipping costs
Part no. 1109210
Artikelbild Brembo brake caliper
Repair kit
BMW 2-valve Boxer models
38mm
€69.90
Prices incl. VAT, plus shipping costs
Part no. 3411188
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 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
Artikelbild Valve adjust screw "Sport"
Set
BMW 2-valve Boxer models
€98.00
Prices incl. VAT, plus shipping costs
Part no. 1133330
Artikelbild Engine gasket Set
From 9/1980 on
BMW R 100RS, R 100RT, R 100CS, R 100GS, R 100R
€129.00
Prices incl. VAT, plus shipping costs
Part no. 1100422
Artikelbild Conrod
Sieenrock Big Bore Kit Touring
150,5 mm
€309.00
Prices incl. VAT, plus shipping costs
Part no. 1109044
Artikelbild Conrod
Siebenrock Big Bore Kit
151,0 mm
€272.00
Prices incl. VAT, plus shipping costs
Part no. 1109045
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
1112261_1 Valve cover Enduro
BMW 2v Boxer models
Extra External screws
€76.99 €89.90
Prices incl. VAT, plus shipping costs
Part no. 1112261
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 Piston ring Set
98mm "MAHLE"
For Big Bore Kit piston
€89.00
Prices incl. VAT, plus shipping costs
Part no. 1109033
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 cooler Kit
BMW 2v Boxer models
Centered position
€469.00
Prices incl. VAT, plus shipping costs
Part no. 1142400
Artikelbild Piston
Power Kit 1000cc
BMW 2-valve Boxer models
€229.00
Prices incl. VAT, plus shipping costs
Part no. 1100120
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 Mounting kit
Luggage rack GS
BMW R 80GS, R 80GS PD, R 100GS, R 100GS PD
€29.70
Prices incl. VAT, plus shipping costs
Part no. 4651375
Artikelbild Valve cover Extra
BMW 2v Boxer models
External Screws
€55.00 €65.00
Prices incl. VAT, plus shipping costs
Part no. 1112241
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 Oil pan distance ring
Enduro
BMW R 65, R 80G/S, R 80GS, R 100GS, R 80GS Basic

€239.00
Prices incl. VAT, plus shipping costs
Part no. 1113120
Artikelbild Valve Intake
44mm
BMW R 100 models
€25.90
Prices incl. VAT, plus shipping costs
Part no. 1134751
Artikelbild Valve exhaust
40mm
BMW R 90, R 100 models
30° lead-free
€48.50
Prices incl. VAT, plus shipping costs
Part no. 1134285
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
1814189_1 Manifold
Chrome
BMW R 80, R 100 Monolever models
Right side With oil cooler
€186.00
Prices incl. VAT, plus shipping costs
Part no. 1814189
16112301653_1 Fuel tank
BMW R 80ST, R 65GS,
R 80G/S, R 80GS Basic
€990.00
Prices incl. VAT, plus shipping costs
Part no. 16112301653
16112323152_1 Fuel tank
26 liters
BMW Paralever models

€890.00
Prices incl. VAT, plus shipping costs
Part no. 16112323152
6131219_1 Combination switch
Turn signal / Starter
BMW /5 and /6 models
Right Long
€129.00
Prices incl. VAT, plus shipping costs
Part no. 6131219
6131220_1 Combination switch
Light / Horn
BMW /5 and /6 models
Left Long
€129.00
Prices incl. VAT, plus shipping costs
Part no. 6131220
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