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Big Bore Kit 1070cc

BMW R 100 models from 9/80 on
Conrods 151,0 mm

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

€2,750.00

Prices incl. VAT, plus shipping costs

  • 1101100
Plug & Play Kit “Piston capacity can only be replaced by even more piston capacity” – this was... more
Big Bore Kit 1070cc
Plug & Play Kit

“Piston capacity can only be replaced by even more piston capacity” – this was the adopted motto during the company-internal development of the Siebenrock Big Bore Kit. The goal of this construction was to enhance the motor characteristics which were already outstanding thanks to the Power and Replacement Kits. We didn’t just say this, we went out and did it and the result for all BMW 1000 cc models from 1981 onwards was the 1070 cc Big Bore Kit, which turned out to be the ultimate solution for sporty touring riders. After modification, an amazing 80 hp is available at an engine torque of 92Nm. That’s what we call a convincing result.

This performance boost was achieved using 151 millimetre long, high-stability connecting rods which, when weight-optimized and fitted with ARP screws, only put 450 grams on the scales. Quite apart from this, 98 millimetre, weight-optimized pistons are used which only weigh 428 grams including the rings, bolts and clips. Thanks to the well-designed piston form, it is not necessary to adapt the cylinder head to the big bore.

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

All of the parts required to mount the kit are included within the scope of delivery:

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

TIP
Conrod bearing shell, art.no. 1124460, 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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Customer evaluation for "Big Bore Kit 1070cc"
9 Mar 2020

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Artikelbild Big Bore Kit 1070cc Touring
BMW R 100 models from 9/80 on
Conrods 150,5mm
€2,870.00
Prices incl. VAT, plus shipping costs
Part no. 1101110
Artikelbild Bearing shell conrod
BMW 2v Boxer models
Standard sized
€9.90
Prices incl. VAT, plus shipping costs
Part no. 1124460
Artikelbild Sport tappet, Cam follower
BMW 2-valve Boxer models
Wank
€119.00
Prices incl. VAT, plus shipping costs
Part no. 1133638
Artikelbild Cover camshaft
BMW 2v Boxer models from 9/78 on
€41.50
Prices incl. VAT, plus shipping costs
Part no. 1114005
Artikelbild Valve Cover Retro Black semi-matt
BMW 2v Boxer models
€86.90
Prices incl. VAT, plus shipping costs
Part no. 1112246
1131183_1 Chain tensioner Set Simplex
BMW 2V Boxer models
€79.00
Prices incl. VAT, plus shipping costs
Part no. 1131183
Artikelbild Valve adjust screw "Sport" Set
BMW 2-valve Boxer models
€89.90
Prices incl. VAT, plus shipping costs
Part no. 1133330
Artikelbild Power Kit 860cc Plug & Play
BMW R 45 from 9/80, R 65GS, R 65 Mono 27hp
€969.00
Prices incl. VAT, plus shipping costs
Part no. 1100860
Artikelbild Transmission bearing set
BMW 2-vakve Boxer models
5-speed gearbox
€65.00
Prices incl. VAT, plus shipping costs
Part no. 2312999
Artikelbild Exhaust star nut
BMW /7, Monoelver, Paralever models
With short fins
€27.50
Prices incl. VAT, plus shipping costs
Part no. 1821721
Artikelbild Carb gasket set
BMW 2-valve Boxer models
32/40mm Bing carb Without diaphragm
€15.95
Prices incl. VAT, plus shipping costs
Part no. 1311951
Artikelbild Power Kit Extra 1000cc Stainless steel push rod tubes
BMW R 80, R 80RT, R 80G/S, R 80ST, R 80GS, R 80R
€1,049.00
Prices incl. VAT, plus shipping costs
Part no. 1100082
Artikelbild Valve cover Classic BMW 2-valve R 45 up to R 100R
BMW 2v Boxer
€48.50
Prices incl. VAT, plus shipping costs
Part no. 1112240
Artikelbild Crankshaft seal
BMW 2-valve models
Rear
€21.95
Prices incl. VAT, plus shipping costs
Part no. 1111739
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 Pushrod tube
BMW 2v Boxer models from 9/75 on
Stainless steel 18mm
€19.95
Prices incl. VAT, plus shipping costs
Part no. 1111904
NEW
1372654_1 Intake rubber carburetor
BMW 2-valve Boxer models
D=52mm
€12.70
Prices incl. VAT, plus shipping costs
Part no. 1372654
Artikelbild Valve Exhaust 32mm
BMW R 50/5
€48.50
Prices incl. VAT, plus shipping costs
Part no. 1134119
Artikelbild Valve Intake 34mm
BMW R 50/5
€25.90
Prices incl. VAT, plus shipping costs
Part no. 1134118
NEW
Artikelbild Gearbox bearing Set
BMW R 50/5, R 60/5, R 75/5
4 speed gearbox
€89.90
Prices incl. VAT, plus shipping costs
Part no. 2312994
1107421_1 Engine gasket set 1000cc
BMW R 100/7, R 100S, R 100RS, R 100RT
€109.00
Prices incl. VAT, plus shipping costs
Part no. 1107422
Artikelbild Piston ring set 98mm
For Big Bore Kit piston
€89.00
Prices incl. VAT, plus shipping costs
Part no. 1109033
Artikelbild Fuel filler cap
BMW R 65GS, R 80G/S, R 80GS, R 100GS
€44.50
Prices incl. VAT, plus shipping costs
Part no. 1613063
Artikelbild Camshaft asymmetric
BMW R 45, R 65 models
€298.00
Prices incl. VAT, plus shipping costs
Part no. 1131180
Artikelbild Repair kit brake master cylinder 13mm
BMW 2-valve Boxer models
€54.95
Prices incl. VAT, plus shipping costs
Part no. 3272784R
Artikelbild Gasket set
BMW 2-valve Boxer models
For Karcoma fuel tap
€10.75
Prices incl. VAT, plus shipping costs
Part no. 1612869
0758376_1 Silicone sealing compound
0.03 Liter (€465.00 / 1 Liter)
BMW 2V Boxer models
Drei Bond
Content 0.03 Liter (€465.00 * / 1 Liter)
€13.95
Prices incl. VAT, plus shipping costs
Part no. 0758376
Artikelbild Power Kit 860cc Plug & Play
BMW R 45 up to 9/80
€999.00
Prices incl. VAT, plus shipping costs
Part no. 1100861
Artikelbild Clutch installation Tool
BMW 2v models up to 9/80
€21.50
Prices incl. VAT, plus shipping costs
Part no. 8121026
Artikelbild Brush set with connector
BMW 2-valve Boxer models
€6.50
Prices incl. VAT, plus shipping costs
Part no. 1231480S
Artikelbild Exhaust Thread Cutting Tool
BMW 2-valve Boxer models
M52x2
€95.00
Prices incl. VAT, plus shipping costs
Part no. 1899270
Artikelbild Fuel filler cap 101 style
BMW 2v Boxer models
€169.00
Prices incl. VAT, plus shipping costs
Part no. 5125119S
Artikelbild Brake disc Brembo
BMW Monolever models
Front Floating
€249.00
Prices incl. VAT, plus shipping costs
Part no. 3411067B
Artikelbild Seat pan holder Repair set
BMW R 80GS, R 100GS R 80R, R 100R
€9.50
Prices incl. VAT, plus shipping costs
Part no. 5253170
Artikelbild Motor cover
BMW 2v Boxer models
Cafe Racer look
€189.00
Prices incl. VAT, plus shipping costs
Part no. 1114261
Artikelbild Oil pan distance ring
BMW 2-valve Boxer models
€119.00
Prices incl. VAT, plus shipping costs
Part no. 1113100
Artikelbild Engine gasket set
BMW R 100RS, R 100RT, R 100CS, R 100GS, R 100R
€109.00
Prices incl. VAT, plus shipping costs
Part no. 1100422
Artikelbild Oil drain plug engine
BMW 2-valve Boxer models
Magnetic M 18x1,5
€7.90
Prices incl. VAT, plus shipping costs
Part no. 0711143
Artikelbild Camshaft gasket set
BMW 2v Boxer models from 9/78 on
€10.65
Prices incl. VAT, plus shipping costs
Part no. 1114444
Artikelbild Power Kit 1000cc Plug & Play
BMW R 80, R 80RT, R 80G/S, R 80ST, R 80GS, R 80R
€969.00
Prices incl. VAT, plus shipping costs
Part no. 1100080
Artikelbild Conrod screw ARP Racing
For Big Bore Kit
€69.00
Prices incl. VAT, plus shipping costs
Part no. 1109004
NEW
1101101_1 Big Bore Kit 1070cc Custom
BMW R100 models from 9/80 on
Conrods 151,0 mm
€2,470.00
Prices incl. VAT, plus shipping costs
Part no. 1101101
Artikelbild Big Bore Kit 1070cc Touring
BMW R 100 models from 9/80 on
Conrods 150,5mm
€2,870.00
Prices incl. VAT, plus shipping costs
Part no. 1101110
NEW
1101111_1 Big Bore Kit 1070cc Touring
BMW R 100 models from 9/80 on
Conrods 150,5mm
€2,590.00
Prices incl. VAT, plus shipping costs
Part no. 1101111
Artikelbild Double ignition kit
BMW 2v Boxer models from 9/78 on
Silent Hektik
€585.00
Prices incl. VAT, plus shipping costs
Part no. 1200100
Artikelbild Power Kit 1000cc Plug & Play
BMW R 80, R 80RT, R 80G/S, R 80ST, R 80GS, R 80R
€969.00
Prices incl. VAT, plus shipping costs
Part no. 1100080
NEW
1133636_1 Sport tappet, Cam follower Black
BMW 2V Boxer models
3 windows
€98.00
Prices incl. VAT, plus shipping costs
Part no. 1133636
Artikelbild Power Kit 860cc Plug & Play
BMW R 65 9/80 on, R 65LS, R 65 Mono, 48hp
€969.00
Prices incl. VAT, plus shipping costs
Part no. 1100870
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
€1,049.00
Prices incl. VAT, plus shipping costs
Part no. 1100103
Artikelbild Power Kit 860cc Plug & Play
BMW R 45 up to 9/80
€999.00
Prices incl. VAT, plus shipping costs
Part no. 1100861
Artikelbild Sport tappet, Cam follower
BMW 2-valve Boxer models
Wank
€119.00
Prices incl. VAT, plus shipping costs
Part no. 1133638
NEW
1133637_1 Sport tappet, Cam follower Gold
BMW 2V Boxer models
3 windows
€109.00
Prices incl. VAT, plus shipping costs
Part no. 1133637
Artikelbild Power Kit Extra 1000cc Stainless steel push rod tubes
BMW R 80, R 80RT, R 80G/S, R 80ST, R 80GS, R 80R
€1,049.00
Prices incl. VAT, plus shipping costs
Part no. 1100082
Artikelbild Camshaft asymmetric
BMW R 45, R 65 models
€298.00
Prices incl. VAT, plus shipping costs
Part no. 1131180
Artikelbild Sport gearwheel set S
BMW 2-valve Boxer models
€1,485.00
Prices incl. VAT, plus shipping costs
Part no. 2321600
Artikelbild "Krauser Classic" Motocase Set
MW 2-valve Boxer models
Improved new edition
€539.00
Prices incl. VAT, plus shipping costs
Part no. 4654100
11661002_1 Cylinder head Krauser
Krauser 4-valve / MKM
Left side
€395.00
Prices incl. VAT, plus shipping costs
Part no. 11661002
SHZ2335_1 Alternator410W three-phase with PowerBlock
BMW 2V Boxer models
Digital single ignition 107mm centering
€989.00
Prices incl. VAT, plus shipping costs
Part no. SHZ2335
Artikelbild Power Kit 860cc Plug & Play
BMW R 65 up to 9/80
€999.00
Prices incl. VAT, plus shipping costs
Part no. 1100871
Artikelbild Conrod
For Big Bore Kit
151,0 mm
€272.00
Prices incl. VAT, plus shipping costs
Part no. 1109045
Artikelbild Asymmetrical camshaft kit
BMW 2v Boxer models from 9/78 on
€407.00
Prices incl. VAT, plus shipping costs
Part no. 1131804
Artikelbild Replacement Kit 1000cc Plug & Play
BMW R 100, R 100CS, R 100RS, R 100RT, R 100GS, R 100R
From 9/1980 on
€969.00
Prices incl. VAT, plus shipping costs
Part no. 1100100
Artikelbild Oil cooler kit
BMW 2v Boxer models
Centered
€459.00
Prices incl. VAT, plus shipping costs
Part no. 1142400
Artikelbild Silencers Set
BMW /6 und /7 models
38mm
€349.00
Prices incl. VAT, plus shipping costs
Part no. 1811214
Artikelbild Rear bag GS
BMW 2V Boxer G/S, ST, GS models
Made of sturdy leather
€198.00
Prices incl. VAT, plus shipping costs
Part no. 4654200
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
11661910_1 Valve cover Krauser Right side
Krauser 4-valve / MKM
Black Polished lettering
€179.00
Prices incl. VAT, plus shipping costs
Part no. 11661910
Artikelbild Complete exhaust system
BMW R 80G/S PD
Chrome
€1,440.00
Prices incl. VAT, plus shipping costs
Part no. 1812920
Artikelbild Double ignition Kit
BMW 2V Boxer models fro 9/78 on
SDZ
€585.00
Prices incl. VAT, plus shipping costs
Part no. 1200150
Artikelbild Asymmetrical camshaft
BMW 2v Boxer models from 9/78 on
€298.00
Prices incl. VAT, plus shipping costs
Part no. 1131800
Artikelbild Cylinder with stud bolts
For Power Kit 1000cc, Replacement Kit 1000cc
BMW 2-valve models from 750cc on up to 919/80
€315.00
Prices incl. VAT, plus shipping costs
Part no. 1100111
Artikelbild Cylinder with stud bolts
For Power Kit 1000cc, Replacement Kit 1000cc
BMW 2v Boxer models from 9/1980 on
€298.00
Prices incl. VAT, plus shipping costs
Part no. 1100110
Artikelbild Power Kit 1000cc 99mm Plug & Play
BMW R 75/6, R 75/7, R 80/7, R 90/6, R 90S
€998.00
Prices incl. VAT, plus shipping costs
Part no. 1100084
Artikelbild Cylinder gasket set
For Power Kit 1000cc, Replacement Kit 1000cc
and BMW R 100 models from 9/1980 on
€44.90
Prices incl. VAT, plus shipping costs
Part no. 1100101
NEW
1112340_1 Valve cover Siebenrock 4 ribs
BMW 2v Boxer models
Classic look
€59.00
Prices incl. VAT, plus shipping costs
Part no. 1112340
Artikelbild Piston ring set 98mm
For Big Bore Kit piston
€89.00
Prices incl. VAT, plus shipping costs
Part no. 1109033
Artikelbild Power Kit 860cc Plug & Play
BMW R 45 from 9/80, R 65GS, R 65 Mono 27hp
€969.00
Prices incl. VAT, plus shipping costs
Part no. 1100860
Artikelbild Guidance sleeve
For Big Bore Kit
€3.95
Prices incl. VAT, plus shipping costs
Part no. 1109009
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

€1,079.00
Prices incl. VAT, plus shipping costs
Part no. 1100085
Artikelbild Valve cover Classic BMW 2-valve R 45 up to R 100R
BMW 2v Boxer
€48.50
Prices incl. VAT, plus shipping costs
Part no. 1112240
Artikelbild Camshaft Sport 320°
BMW 2v Boxer models from 9/78 on
€329.00
Prices incl. VAT, plus shipping costs
Part no. 1131824
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