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

Gearbox Without kickstarter
Overhaul

BMW 2v Boxer models

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

€890.00

Prices incl. VAT, plus shipping costs

  • 2300786
The transmission of a BMW 2-valve Boxer motorcycle is exposed to a wide variety of loads. During... more
Gearbox Without kickstarter
Overhaul
The transmission of a BMW 2-valve Boxer motorcycle is exposed to a wide variety of loads. During driving, the transmission is subjected to high torques and forces, especially when accelerating, decelerating and negotiating inclines. The transmission must be able to handle these loads while ensuring smooth and reliable power transmission. It must also be able to handle the heat generated by the friction of the gears.
Therefore, the transmission, is the most common component to be overhauled on the otherwise very robust BMW 2V Boxer models.

Since our stock of replacement gearboxes is exhausted, we offer you, in cooperation with our partner for gearboxes, a high-quality overhaul of your gearbox.

Here, the housing is blasted, all ball and taper roller bearings are renewed and replaced with our high quality bearings. The shift forks and sliding gears will be optimized, the automatic gearshift will be fitted with new springs and the plastic roller will be replaced with a long-life, smooth-running ball bearing. Of course, all seals and oil seals, as well as the idle switch will be replaced.

In the course of this we offer you the possibility, for an additional charge, to realize your own wishes, such as the installation of a long 5th gear.

If it turns out after opening the gearbox that further gears or other individual parts are needed, these will be charged extra.

Interested?
Then we look forward to your inquiry via e-mail to info@siebenrock.com.

Overhaul of your gearbox for the classic BMW two-valve Boxer models
R 80/7, R 80RT from 9/1980 on, R 100/7, R 100CS, R 100RS, R 100RT
R 65GS, R 80G/S, R 80G/S PD, R 80ST
Monolever models R 65, R 80, R 80RT, R 100RS, R 100RT.

Information on product safety
Fits for BMW R2V: R 80 up to 84, R 100 up to 84, R 45 up to 84, R 65 up to 84, R 65 Mono from 85 on, R 80 Mono from 85 on, R 100 RS/RT Mono from 87 on, R 65GS 87-92, R 80 G/S,ST 80-87
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Artikelbild Gearbox Without kickstarter
Overhaul
BMW 2v Boxer Paralever models
€890.00
Prices incl. VAT, plus shipping costs
Part no. 2300461
Artikelbild Gearbox With kickstarter
Overhaul
BMW 2V Boxer models up to 9/80
€890.00
Prices incl. VAT, plus shipping costs
Part no. 2300792
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 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 Gearbox With kickstarter
Overhaul
BMW 2-valve Boxer models
€890.00
Prices incl. VAT, plus shipping costs
Part no. 2300794
BMW R 80RT BMW R 80RT
€5,950.00
11661002_1 Cylinder head Krauser
Left side
Krauser 4-valve / MKM

€0.00
Prices incl. VAT, plus shipping costs
Part no. 11661002
6211779_1 Instrument housing
BMW R 80/7, R 80RT, R 100/7, R 100S,
R 100CS, R 100RS, R 100RT, Monolever
€111.00 €179.00
Prices incl. VAT, plus shipping costs
Part no. 6211779
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 Transmission bearing Set
BMW 2-vakve Boxer models
5-speed gearbox
€78.00
Prices incl. VAT, plus shipping costs
Part no. 2312999
Artikelbild Motocase holder
BMW /5 long swingarm, /6, /7 models
€298.00
Prices incl. VAT, plus shipping costs
Part no. 4660306
Artikelbild "Krauser Classic" Motocase
Set
BMW 2-valve Boxer models
Improved new edition
€659.00
Prices incl. VAT, plus shipping costs
Part no. 4654100
Artikelbild Transmission bearing Set
5-speed gearbox
BMW 2-valve Boxer models

€139.00
Prices incl. VAT, plus shipping costs
Part no. 2312996
Artikelbild Bolt
For clutch disc
BMW 2v Boxer models from 9/80 on
€3.25
Prices incl. VAT, plus shipping costs
Part no. 2121680
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
NEW
3499114_1 Screw set
Siebenrock brake discs
Brake disc hub with 4 holes
BMW 2V Boxer and K models
€5.80
Prices incl. VAT, plus shipping costs
Part no. 3499114
NEW
3499153_1 Screw set
Siebenrock brake discs
Brake disc hub with 5 holes
BMW 2V boxer models
€5.80
Prices incl. VAT, plus shipping costs
Part no. 3499153
NEW
1811441_1 Manifold
40mm Chrome
BMW R 100RS, R 100RT, R 100S
Left side

€186.00
Prices incl. VAT, plus shipping costs
Part no. 1811441
NEW
3431960_1 Rear brake master cylinder
BMW R 100 models
Rear
€349.00
Prices incl. VAT, plus shipping costs
Part no. 3431960
16112323152_1 Fuel tank
26 liters
BMW Paralever models

€890.00
Prices incl. VAT, plus shipping costs
Part no. 16112323152
Artikelbild Clutch disc
BMW 2v Boxer models from 9/80 on
Sachs
€109.00
Prices incl. VAT, plus shipping costs
Part no. 2121512S
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
Artikelbild Brembo brake caliper
Repair kit
BMW 2-valve Boxer models
38mm
€69.90
Prices incl. VAT, plus shipping costs
Part no. 3411188
Artikelbild Sealing rings for inspection
BMW 2V Boxer models
€4.75
Prices incl. VAT, plus shipping costs
Part no. 0711333
Artikelbild Fuel filler cap
Lockable
BMW 2-valve Boxer models
€169.00
Prices incl. VAT, plus shipping costs
Part no. 5125125
Artikelbild Instrument housing
Light Gasket
BMW 2V Boxer models
€1.50
Prices incl. VAT, plus shipping costs
Part no. 6211669
Artikelbild Harness Instrument cluster
Repair kit
BMW 2v Boxer models
€75.00
Prices incl. VAT, plus shipping costs
Part no. 6211999
Artikelbild Speedometer GS2 km version
BMW R 65GS, R 80 G/S, R 80GS,
R 100GS, R 80GS Basic
"Plug and Play"
€319.00
Prices incl. VAT, plus shipping costs
Part no. 6212646
Artikelbild Instrument housing Gasket
BMW 2v Boxer models
€2.50
Prices incl. VAT, plus shipping costs
Part no. 6211671
Artikelbild Valve adjust screw "Sport"
Set
BMW 2-valve Boxer models
€98.00
Prices incl. VAT, plus shipping costs
Part no. 1133330
6211664_1 Instrument housing
BMW R 60/6, R 75/6, R 90/6, R 90S,
R 60/7, R 75/7, R 100 models up to 9/77
€111.00 €179.00
Prices incl. VAT, plus shipping costs
Part no. 6211664
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 Single ignition digital
Silent Hektik
BMW 2v Boxer models ftom 9/78 on

€498.00
Prices incl. VAT, plus shipping costs
Part no. 1200101
Artikelbild Silencer Set
38mm Chrome
BMW /6 und /7 models

€398.00
Prices incl. VAT, plus shipping costs
Part no. 1811214
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 Lid lock
Krauser Classic case
€59.00
Prices incl. VAT, plus shipping costs
Part no. 4654117
LM1500_1x Engine oil
1 Liter
4T 20W-50 Street Liqui Moly
Content 1 Liter
€15.90
Prices incl. VAT, plus shipping costs
Part no. LM1500
Artikelbild Instrument housing Rubber ring
BMW 2v Boxer models
€12.95
Prices incl. VAT, plus shipping costs
Part no. 6211676
Artikelbild Windshield Comfort
Clear
BMW 2v Boxer S-Cockpit
€129.00
Prices incl. VAT, plus shipping costs
Part no. 4663900
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
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