high speed drive

The Schlumpf high speed drive has a large gear transmission ratio and is suited to riding in very high gears. A small sprocket (e.g. 27 teeth) shows great impact in a big gear with 67 teeth. High speed drive is ideal for many applications; especially folding bikes (Brompton, Birdy, etc.) profit from it being modest, wireless, low-maintenance and simply ingenious.

 

 

Installation of schlumpf High Speed Drive

high speed drive

Development: 250%

Gears: 1:1 und 1:2.5 gear ratio

Bottom bracket:

BSA: 68-72mm width, broader axes on premise

Chain wheel acceptance:

Fast assembly via snap ring (chain wheels 30T and 34T possible)

Crank Admission acceptance: Square JIS (Japanese Industrial Standard)

Colour: black

torsional acceptance:

Cone rings with 45 degree angle and equivalent locknuts

- Aluminium rings (for steel framework)

- Steel rings (for Aluminium framework)

Delivery:

The Gear drive/ box will be delivered fully assembled with the chain wheel and crank of your choice

 

High speed drive Chain wheel for fast assembly




Acceptance: 

Fast assembly with a lock ring (only for high speed drive)

Tooth number: 30T, 34T

Material: Steel

Colour: black

 

 

Trouser protection disk for the high speed drive




Acceptance: 

fast assembly with a lock ring (only for high speed drive)

Tooth number: 30T, 34T

colour: black

 

 

High speed drive – 27 teeth chain wheel

Development: 250%

Gears: 1:1 and 1:1.25 gear ratio

Bottom bracket: BSA: 68-72mm width; broader axes on premise

Chain wheel acceptance:

Integrated chain wheel with 27T and integrated trouser protection disk

Crank acceptance: Square JIS (Japanese Industrial Standard)

Colour: Black/chrome

Torsional acceptance:

Cone rings with 45 degree angle and equivalent locknuts:

- Aluminium rings (for steel framework)

- Steel rings (for aluminium framework)

Delivery:

The Gear drive/ box will be delivered fully assembled with the chain wheel and crank of your choice.

  

 

High speed drive Adapter




Gear box: high speed drive

Implementation:

Adapter to BCD 130mm For chain wheels with BCD 130mm 38T

Acceptance:

Fast assembly with a lock ring

Colour: black

 

High speed drive Chain wheel – Aluminium

 



Acceptance: 5-hole, BCD 130mm

Teeth number: 38T, 40T, 42T, 44T, 46T, 48T until 75 teeth

Material: Aluminium 7075

Colour: silver