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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Big Bore Kit 1070cc Touring

BMW R 100 models from 9/80 on
Conrods 150,5mm

Artikelbild
€2,222.00 €2,870.00 *

Prices incl. VAT, plus shipping costs

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

  • 1101110
Plug & Play Kit. No matter which one you choose - you`ll have lots of fun. Guranteed! 1070 ccm... more
Big Bore Kit 1070cc Touring
Plug & Play Kit.

No matter which one you choose - you`ll have lots of fun. Guranteed!

1070 ccm dispacement, 80 PS approx. and giant torues between 90 and 116 Nm argue for themselves.

In addiion to our standard kit, that is established over the years we now have the "Touring" variant equipped with slightly shorter con-rods, for those who look for a powerful smooth riding performance and a plus of torque in the loer revvs.


This ultimate Big Bore Kit for tourers and long-distance travrellers deliveres powerful torque "off the cuff". It persuades in every situation with a quiet engine running and tolerates a bad quality fuel down to 95 octane approx. without knocking.

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

The scope of delivery includes all parts relevant for the assembly of the set:

2 cylinders with pistons
Piston rings
Connecting rod with ARP screws
Asymmetric camshaft
Gasket set camshaft
Gasket set cylinder
Socket for connecting rod screws.

Conrod bearing shel,
Art.No. 1124419
Art.No. 1124420
Art.No. 1124460
Art.No. 1124461
must be ordered seperately!

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

For the classic BMW 2-valve Boxer models
R 100, R 100CS, R 100RS, R 100RT
Monolever models R 100RS (x), R 100RT (x)
Paralever models R 100GS (x), R 100R (x).

(x) = only permitted for vehicles up to 31.3.1994.

TIP
The use of dual ignition is strongly recommended.
Ready-to-install camshaft including camshaft gear and front camshaft bearing on request.
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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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
Artikelbild Big Bore Kit 1070cc
BMW R 100 models from 9/80 on
Conrods 151,0 mm
€2,222.00 €2,750.00
Prices incl. VAT, plus shipping costs
Part no. 1101100
NEW
1113093_1 Siebenrock FM Oil pan
BMW 2-valve Boxer models
Black Logo and fins polished
€700.00 €879.00
Prices incl. VAT, plus shipping costs
Part no. 1113093
NEW
1113087_1 Siebenrock FM Oil pan
BMW 2-valve Boxer models
Individual
€600.00 €769.00
Prices incl. VAT, plus shipping costs
Part no. 1113087
NEW
1113080_1 Siebenrock FM Oil pan
BMW 2-valve Boxer models
Basic
€555.00 €685.00
Prices incl. VAT, plus shipping costs
Part no. 1113080
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
11661002_1 Cylinder head Krauser
Left side
Krauser 4-valve / MKM

€0.00
Prices incl. VAT, plus shipping costs
Part no. 11661002
Artikelbild Asymmetrical camshaft
BMW 2v Boxer models from 9/78 on
€329.00
Prices incl. VAT, plus shipping costs
Part no. 1131800
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 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 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 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
NEW
1100065_1 Power Kit Extra 1000cc 99mm
Plug & Play
BMW R 60/6, R 60/7 from 9/1975 on
€999.00 €1,159.00
Prices incl. VAT, plus shipping costs
Part no. 1100065
NEW
1100062_1 Power Kit Extra 1000cc 97mm
Plug & Play
BMW R 60/5 , R 60/6 up to 9/1975
€999.00 €1,159.00
Prices incl. VAT, plus shipping costs
Part no. 1100062
NEW
5253904_1 Seat Support rubber
16mm
BMW 2-valve Boxer models
€3.10
Prices incl. VAT, plus shipping costs
Part no. 5253904
Artikelbild Reinforced Disc Spring
Ideal for the Siebenrock Big Bore Kit
€138.71
Prices incl. VAT, plus shipping costs
Part no. 2121597
1311974_1 Main jet 155
BING Carburetor 64/32 /94/40
BMW 2V Boxer models
€10.50
Prices incl. VAT, plus shipping costs
Part no. 1311974
1311311_1 Throttle valve adjustment screw
BING Carburetor
64/26, 64/28, 64/32, 94/40
BMW 2V Boxer models
€1.90
Prices incl. VAT, plus shipping costs
Part no. 1311311
NEW
1109205_1 Gudgeon pin "S" Set
20mm
Siebenrock Big Bore Kit 1070cc "S"
€29.90
Prices incl. VAT, plus shipping costs
Part no. 1109205
NEW
1109222_1 Piston "S"
Big Bore Kit "S"
BMW R 100 models
98mm complete with 3 rings
€399.00
Prices incl. VAT, plus shipping costs
Part no. 1109222
NEW
3411198_1 Brake disc Mono / Para Right
Floating
BMW Paraleverr, Monolever with single disc
€169.00 €219.00
Prices incl. VAT, plus shipping costs
Part no. 3411198
NEW
3411197_1 Brake disc Paralever Left side
Floating
BMW R 80R and R 100R models
€169.00 €219.00
Prices incl. VAT, plus shipping costs
Part no. 3411197
11661410_1 Rocker arm outlet Krauser
Left side
Krauser 4-valve / MKM

€118.00
Prices incl. VAT, plus shipping costs
Part no. 11661410
11661414_1 Screw eccentric roller Krauser
For rocker arm
Krauser 4-valve / MKM

€2.95
Prices incl. VAT, plus shipping costs
Part no. 11661414
11661411_1 Rocker arm outlet
Right side
Krauser 4-valve / MKM

€118.00
Prices incl. VAT, plus shipping costs
Part no. 11661411
11121342684 Cylinder head
Right side
Used item
BMW R 4V models
€250.00
plus shipping costs
Part no. 11121342684.1
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
6211663_1 Instrument housing
White Rings
BMW R 60/6, R 75/6, R 90/6, R 90S
R 60/7, R 75/7, R 100 models
€111.00 €179.00
Prices incl. VAT, plus shipping costs
Part no. 6211663
LM3078_1x Brake Anti Squeal Paste
0.01 Kilogramm (€195.00 / 1 Kilogramm)
Liqui Moly
Content 0.01 Kilogramm (€195.00 * / 1 Kilogramm)
€1.95
Prices incl. VAT, plus shipping costs
Part no. LM3078
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 Testing and adjustment equipment
Hall sensor
BMW 2v Boxer models
€49.50
Prices incl. VAT, plus shipping costs
Part no. 1200087
Artikelbild Hall sensor
BMW 2v Boxer models from 9/80 on
€129.90
Prices incl. VAT, plus shipping costs
Part no. 1200088
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
Big Bore Kit "MAHLE"
98mm
€459.00
Prices incl. VAT, plus shipping costs
Part no. 1109010
Artikelbild Rear bag GS
BMW 2V Boxer G/S, ST, GS models
Made of sturdy leather
€169.00 €219.00
Prices incl. VAT, plus shipping costs
Part no. 4654200
Artikelbild Cylinder protection
Right side Chrome plated
BMW /7, R 80ST, R 80G/S, R 65GS,
Monolever, Paralever models
€99.00 €114.60
Prices incl. VAT, plus shipping costs
Part no. 4671880
Artikelbild Piston
Replacement Kit 1000cc
BMW R 100 models
€229.00
Prices incl. VAT, plus shipping costs
Part no. 1100121
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 Gearbox 4-speed kickstarter
Overhaul
BMW R 50/5, R 60/5, R 75/5
€890.00
Prices incl. VAT, plus shipping costs
Part no. 2300038
Artikelbild Cylinder gasket Set
BMW Siebenrock Big Bore Kit 1070cc
€98.00
Prices incl. VAT, plus shipping costs
Part no. 1100424
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