
€2,695.00
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- part no.: 1101110
Plug & Play Kit. Siebenrock Big Bore Kit – The Original: Powerful, uncompromising, and... more
Big Bore Kit 1070cc Touring
Plug & Play Kit.
Siebenrock Big Bore Kit – The Original: Powerful, uncompromising, and time-tested.
Back in 2004, Siebenrock presented its groundbreaking 1070 cc Big Bore Kit to the public for the first time at the Intermot trade show. The innovative design – featuring a short, weight-optimized piston paired with a forged H-beam connecting rod measuring approximately 151 mm in length – was a technical highlight. The extended rod geometry ensures that the piston remains entirely within the cylinder bore, eliminating intrusion into the crankcase. This clever engineering concept received immediate acclaim and has since inspired numerous imitators.
More than two decades later, the Siebenrock BBK 1070, now equipped with the renowned asymmetric camshaft, continues to rank among the most powerful, reliable, and refined plug & play upgrade solutions for classic BMW 2-valve boxer engines. Delivering over 100 Nm of torque, it represents the perfect union of technical sophistication, German-made quality, and a genuine passion for engineering.
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.
Siebenrock Big Bore Kit – The Original: Powerful, uncompromising, and time-tested.
Back in 2004, Siebenrock presented its groundbreaking 1070 cc Big Bore Kit to the public for the first time at the Intermot trade show. The innovative design – featuring a short, weight-optimized piston paired with a forged H-beam connecting rod measuring approximately 151 mm in length – was a technical highlight. The extended rod geometry ensures that the piston remains entirely within the cylinder bore, eliminating intrusion into the crankcase. This clever engineering concept received immediate acclaim and has since inspired numerous imitators.
More than two decades later, the Siebenrock BBK 1070, now equipped with the renowned asymmetric camshaft, continues to rank among the most powerful, reliable, and refined plug & play upgrade solutions for classic BMW 2-valve boxer engines. Delivering over 100 Nm of torque, it represents the perfect union of technical sophistication, German-made quality, and a genuine passion for engineering.
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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BMW 2v Boxer models
Standard sized
Standard sized
€12.50
Prices incl. VAT, plus shipping costs
Part no. 1124460
BING Carburetor 64/32 /94/40
BMW 2V Boxer models
€10.95
Prices incl. VAT, plus shipping costs
Part no. 1311974
BING carburetor 94/40
BMW R 100 Paralever
€11.40
Prices incl. VAT, plus shipping costs
Part no. 1311522
BING carburetor 94/40
BMW R 80, R 100 models
€11.40
Prices incl. VAT, plus shipping costs
Part no. 1311321
NEW
BMW R 100 models
Rear
Rear
€389.00
Prices incl. VAT, plus shipping costs
Part no. 3431960
R 50, R 50S, R 50/2, R 60, R 60/2, R 69, R 69S
€319.00
Prices incl. VAT, plus shipping costs
Part no. 4654203
For spark plug
BMW R 100 models
€4.95
Prices incl. VAT, plus shipping costs
Part no. 1212000
Touring
BMW 2-valve Boxer models
Short For the journey
Short For the journey
€42.90
Prices incl. VAT, plus shipping costs
Part no. 1821698
Black
BMW 2-valve Boxer models
€169.00
Prices incl. VAT, plus shipping costs
Part no. 1113100S
BMW 4V Boxer and K 4V models
€64.50
Prices incl. VAT, plus shipping costs
Part no. 3272140R
Overhauled In exchange
BMW 2-valve Boxer models
€129.00
Prices incl. VAT, plus shipping costs
Part no. 1231642
Diode plate
BMW 2-valve Boxer models
€3.95
Prices incl. VAT, plus shipping costs
Part no. 1231131
Silent Hektik
BMW 2v Boxer models from 9/78 on
€599.00
Prices incl. VAT, plus shipping costs
Part no. 1200100
BMW R 80G/S
€9.40
Prices incl. VAT, plus shipping costs
Part no. 5114498
BMW 2v Boxer models
€12.95
Prices incl. VAT, plus shipping costs
Part no. 6211676
Stainless steel pushrod tubes
BMW R 75/6, R 90/6, R 90S, R 75/7, R 80/7, R 80RT
€1,179.00
Prices incl. VAT, plus shipping costs
Part no. 1100085
Long 5th gear Wiith "X"
BMW 2v Boxer models from 4/82 on
€159.50
Prices incl. VAT, plus shipping costs
Part no. 2322993
BMW 2v Boxer models
Front
Front
€6.50
Prices incl. VAT, plus shipping costs
Part no. 1114011
BMW 2V Boxer models
€1.90
Prices incl. VAT, plus shipping costs
Part no. 1141258
BMW 2V Boxer, K 2V, K 4V, F models
€21.90
Prices incl. VAT, plus shipping costs
Part no. 0711070
Rear bolts
BMW Paralever models
€10.95
Prices incl. VAT, plus shipping costs
Part no. 5255210
BMW R 100 models from 9/80 on
Conrods 151,0 mm
Conrods 151,0 mm
€2,595.00
Prices incl. VAT, plus shipping costs
Part no. 1101100
NEW
Conrods 150,5mm
€2,695.00
Prices incl. VAT, plus shipping costs
Part no. 1101210
NEW
Conrods 151,0 mm
€2,595.00
Prices incl. VAT, plus shipping costs
Part no. 1101200
Plug & Play
BMW R 100, R 100CS, R 100RS, R 100RT, R 100GS, R 100R
From 09/180 on
From 09/180 on
€1,159.00
Prices incl. VAT, plus shipping costs
Part no. 1100103
Stainless steel push rod tubes
BMW R 80, R 80RT, R 80G/S, R 80ST, R 80GS, R 80R
€1,159.00
Prices incl. VAT, plus shipping costs
Part no. 1100082
Left side
Krauser 4-valve / MKM
€0.00
Prices incl. VAT, plus shipping costs
Part no. 11661002
Plug & Play
BMW R 80, R 80RT, R 80G/S, R 80ST, R 80GS, R 80R
€1,069.00
Prices incl. VAT, plus shipping costs
Part no. 1100080
Plug & Play
BMW R 100, R 100CS, R 100RS, R 100RT, R 100GS, R 100R
From 9/1980 on
From 9/1980 on
€1,069.00
Prices incl. VAT, plus shipping costs
Part no. 1100100
NEW
Plug & Play
BMW R 60/6 from 9/1975 on, R 60/7
€1,179.00
Prices incl. VAT, plus shipping costs
Part no. 1100065
Silent Hektik
BMW 2v Boxer models from 9/78 on
€599.00
Prices incl. VAT, plus shipping costs
Part no. 1200100
BMW 2v Boxer models
Standard sized
Standard sized
€12.50
Prices incl. VAT, plus shipping costs
Part no. 1124460
NEW
BMW 2-valve Boxer models
Basic
Basic
€685.00
Prices incl. VAT, plus shipping costs
Part no. 1113080
Plug & Play
BMW R 45 from 9/80, R 65GS, R 65 Monolever 27hp
€1,079.00
Prices incl. VAT, plus shipping costs
Part no. 1100860
NEW
Plug & Play
BMW R 60/5 , R 60/6 up to 9/1975
€1,179.00
Prices incl. VAT, plus shipping costs
Part no. 1100062
99mm Plug & Play
BMW R 100/7, R 100S, R 100RS, R 100RT
Up to 9/1980
Up to 9/1980
€1,179.00
Prices incl. VAT, plus shipping costs
Part no. 1100105
BMW 2V Boxer models from 9/78 on
SDZ
SDZ
€599.00
Prices incl. VAT, plus shipping costs
Part no. 1200150
NEW
BMW 2-valve Boxer models
€139.00
Prices incl. VAT, plus shipping costs
Part no. 1113100
BMW 2v Boxer models from 9/78 on
€329.00
Prices incl. VAT, plus shipping costs
Part no. 1131800
Plug & Play
BMW R 75/5, R 75/6, R 90/6 , R 90S up to 9/7
€1,179.00
Prices incl. VAT, plus shipping costs
Part no. 1100072
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
BMW 2-valve Boxer models
Black Logo and fins polished
Black Logo and fins polished
€879.00
Prices incl. VAT, plus shipping costs
Part no. 1113093
NEW
+0,25 1.Oversize
BMW 2V Boxer models
€12.50
Prices incl. VAT, plus shipping costs
Part no. 1124419
Plug & Play
BMW R 100/7, R 100RS, R 100RT
Up to 9/1980
Up to 9/1980
€1,189.00
Prices incl. VAT, plus shipping costs
Part no. 1100104
Stainless steel pushrod tubes
BMW R 75/6, R 90/6, R 90S, R 75/7, R 80/7, R 80RT
€1,179.00
Prices incl. VAT, plus shipping costs
Part no. 1100085
NEW
Big Bore Kit "S"
BMW R 100 models
98mm complete with 3 rings
98mm complete with 3 rings
€399.00
Prices incl. VAT, plus shipping costs
Part no. 1109222
BMW R 45, R 65 models
€329.00
Prices incl. VAT, plus shipping costs
Part no. 1131180
40 Years of Siebenrock
Anniversary Offer
BMW 2v Boxer models
BMW 2v Boxer models
€111.00
Prices incl. VAT, plus shipping costs
Part no. 1112261S40
NEW
BMW 2-valve Boxer models
Individual
Individual
€769.00
Prices incl. VAT, plus shipping costs
Part no. 1113087
Chrome
BMW /5, /6, /7 models
38mm
38mm
€398.00
Prices incl. VAT, plus shipping costs
Part no. 1812908
BMW 2-valve Boxer models
€49.75
Prices incl. VAT, plus shipping costs
Part no. 1112240
NEW
+0,02 Standard sized
BMW 2V Boxer models
€12.50
Prices incl. VAT, plus shipping costs
Part no. 1124461
Black
BMW 2-valve Boxer models
€169.00
Prices incl. VAT, plus shipping costs
Part no. 1113100S
Plug & Play
BMW R 45 up to 9/80
€1,096.00
Prices incl. VAT, plus shipping costs
Part no. 1100861
BMW 2v Boxer models
Centered position
Centered position
€469.00
Prices incl. VAT, plus shipping costs
Part no. 1142400
Big Bore Kit "MAHLE"
BMW R 100 models
98mm complete with 3 rings
98mm complete with 3 rings
€399.00
Prices incl. VAT, plus shipping costs
Part no. 1109022
Set
BMW 2-valve Boxer models
Improved new edition
Improved new edition
€659.00
Prices incl. VAT, plus shipping costs
Part no. 4654100
NEW
+0,50 2.Oversize
BMW 2V Boxer models
€12.50
Prices incl. VAT, plus shipping costs
Part no. 1124420
For Power Kit, Replacement Kit and Big Bore Kit pistons
€27.95
Prices incl. VAT, plus shipping costs
Part no. 1109015
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