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 With kickstarter
Overhaul

BMW 2-valve Boxer models

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

€890.00

Prices incl. VAT, plus shipping costs

  • 2300794
The transmission of a BMW 2-valve Boxer motorcycle is exposed to a wide variety of loads. During... more
Gearbox With 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 With kickstarter
Overhaul
BMW 2v Boxer Paralever models
€890.00
Prices incl. VAT, plus shipping costs
Part no. 2300468
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 Gearbox With kickstarter
Overhaul
BMW 2V Boxer models up to 9/80
€890.00
Prices incl. VAT, plus shipping costs
Part no. 2300792
3353733Y_1 Shock YSS
BMW R 65GS, R 80G/S
"G/S Sport" Black edition
€498.00
Prices incl. VAT, plus shipping costs
Part no. 3353733Y
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 Without kickstarter
Overhaul
BMW 2v Boxer models
€890.00
Prices incl. VAT, plus shipping costs
Part no. 2300786
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
NEW
3411068_1 Brake disc Mono Right side
Floating
BMW Monolever with double disc
€169.00 €219.00
Prices incl. VAT, plus shipping costs
Part no. 3411068
Artikelbild Sealing rings for inspection
BMW 2V Boxer models
€4.75
Prices incl. VAT, plus shipping costs
Part no. 0711333
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 Oil thermostat
BMW 2V Boxer models
€198.00
Prices incl. VAT, plus shipping costs
Part no. 1142301
Artikelbild Brake disc 2-2 perforation
Deep shape Siebenrock product
BMW R 45, R 65, R 65GS, R 80G/S, R 80G/S PD, R 80ST

€169.00 €219.00
Prices incl. VAT, plus shipping costs
Part no. 3411005
Artikelbild Transmission bearing Set
5-speed gearbox
BMW 2-valve Boxer models

€139.00
Prices incl. VAT, plus shipping costs
Part no. 2312996
Artikelbild Key
Oil plug
BMW 2-valve Boxer models
For valve cover
€5.90
Prices incl. VAT, plus shipping costs
Part no. 1112295
Artikelbild Gasket kit carburetor
BING carburetor 94/40
BMW 2V Boxer Models
With diaphragm
€99.50
Prices incl. VAT, plus shipping costs
Part no. 1311902
3353730Y_1 Shock YSS
BMW R 65GS, R 80G/S
Eco
€298.00
Prices incl. VAT, plus shipping costs
Part no. 3353730Y
3353733_1 Shock YSS
BMW R 65GS, R 80G/S
"G/S Sport"
€389.00
Prices incl. VAT, plus shipping costs
Part no. 3353733
BMW R 80ST BMW R 80ST
€4,900.00
NEW
6299737_1 Adapter cable additional instruments
For Speedometer GS2
BMW R 65GS, R 80G/S, R 80GS, R 100GS, R 80GS Basic
€29.90
Prices incl. VAT, plus shipping costs
Part no. 6299737
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
16112301931_1 Fuel tank
BMW R 80ST, R 65GS,
R 80G/S, R80GS Basic
€990.00
Prices incl. VAT, plus shipping costs
Part no. 16112301931
Artikelbild Cylinder protection
Black coated
BMW /5, /6, /7, Monolever models
€221.99 €249.00
Prices incl. VAT, plus shipping costs
Part no. 4671835
Artikelbild Brembo brake caliper
Repair kit
BMW 2-valve Boxer models
38mm
€69.90
Prices incl. VAT, plus shipping costs
Part no. 3411188
Artikelbild Remote control
For Speedometer GS2
BMW R 65GS, R 80G/S, R 80ST, R 80/100GS, R 80GS Basic

€65.90
Prices incl. VAT, plus shipping costs
Part no. 6299735
Artikelbild Silencer
Chrome
BMW R 80ST, R 80G/S PD

€796.00
Prices incl. VAT, plus shipping costs
Part no. 1812965
LM4420_1x Fully synthetic gear oil
0.5 Liter (€35.00 / 1 Liter)
Liqui Moly
Content 0.5 Liter (€35.00 * / 1 Liter)
€17.50
Prices incl. VAT, plus shipping costs
Part no. LM4420
Artikelbild Silencer Set
Chrome
BMW R 45, R 65
€398.00
Prices incl. VAT, plus shipping costs
Part no. 1811229
LM1404_1x Hypoid gear oil
0.5 Liter (€15.70 / 1 Liter)
GL5 SAE85W-90 Liqui Moly
Content 0.5 Liter (€15.70 * / 1 Liter)
€7.85
Prices incl. VAT, plus shipping costs
Part no. LM1404
Artikelbild Gearbox gasket Set
5-speed with kickstarter
BMW 2-valve Boxer models

€56.95
Prices incl. VAT, plus shipping costs
Part no. 2300596
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

€999.00 €1,159.00
Prices incl. VAT, plus shipping costs
Part no. 1100085
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 Valve cover gasket
BMW 2-valve Boxer models
€3.95
Prices incl. VAT, plus shipping costs
Part no. 1112426
Artikelbild Brake master cylinder 12mm
Front
BMW R 65GS, R 80G/S, R 80ST, R 45, R 65
€249.50
Prices incl. VAT, plus shipping costs
Part no. 3272369
1231107D_1 Diode board Replacement
270W
BMW 2-valve Boxer models

€89.90
Prices incl. VAT, plus shipping costs
Part no. 1231107D
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
3353110Y_1 Shock Set
BMW /5, /6 and /7 models
YSS Black edition
€389.00
Prices incl. VAT, plus shipping costs
Part no. 3353110Y
3353353_1 Shock YSS
BMW R 80ST
"Sport"
€389.00
Prices incl. VAT, plus shipping costs
Part no. 3353353
5253843_1 Single seat cover G/S
Simple reproduction
BMW R 65GS, R 80G/S, R 80G/S PD, R 80ST, R 80GS Basic
€59.00
Prices incl. VAT, plus shipping costs
Part no. 5253843
5253335_1 Single seat GS
BMW R 80GS, R 100GS, R 80GSPD, R 100GSPD
€335.00
Prices incl. VAT, plus shipping costs
Part no. 5253335
5253835_1 Seat S
BMW R 80, R100 models from 9/83 on
€595.00
Prices incl. VAT, plus shipping costs
Part no. 5253835
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