schlumpf drive
The schlumpf drives offers extraordinary possibilities.
The extremely slender two gear gearbox is added to the chain ring as in the model, either to the gear transmission or the gear reduction.
The ideal, non-descript supplement can be universally used and offers more fun and comfort when riding.
A technical lucky bag without cables, safe and above all low maintenance.
Overview schlumpfdrive
| Model: | - |
speed drive (supplement/ extension of expansion without extreme marginal value) 1:1 and transmission 1:1.65 |
| - |
high speed drive (supplement for reaching high speeds) 1:1 and transmission 1:2.5 |
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| - |
mountain drive (supplement with easy gears) 1:1 and reduction 2,5:1 |
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| - |
reha drive (supplement with easy gears – specifically for disabled vehicles.) 1:1 and reduction 2,5:1 |
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| Principle: | - | Planetary gear with 2 protective positions: 1:1 direct gear and one transmission or reduction |
| Bottom Bracket: | - |
- BSA 68mm - 72mm width (wider axes on demand possible) |
| Chain wheels: | - |
- 34/36/38/40 teeth of steel - 42/44/46/48/50/52/... up to 75 teeth of aluminium |
|
Gear Changing: |
- | by a kick with the heel, be it while standing still or at full throttle |
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Crank: |
- |
commercially available models with regular square seats… 170mm aluminium, straight, silver or black 170mm aluminium, bent, black 160mm, 165mm, 172.5mm, 175mm aluminium bent, black or silver 155mm, straight, silver and black |
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advanced belt drive
Advanced belt drive is a consistent belt system:
thick, deep gripping teeth so that the belt can’t skip, discs on both sides of sprocket for belt guidance and protection,
light robust belt discs made out of a piece of high strength aluminium, self cleaning system.
The gear belt system doesn’t add any additional requirements to the rigidity of the framework,
it runs without initial tension and does not generate any additional bearing load.
Overview advanced belt drive
| sprockets: | - |
manufactured of a piece of aluminium (7075) or steel 1.4305 width: 11mm |
| lamination: | - |
Covering anodised black – other colours on demand steel: untreated |
| Front Sprocket: | - |
34t, 37t, 38t, 40t, 42t, 43t, 45t, 50t |
| Crank acceppance: |
- 5 arm, BCD 130mm - 5 arm, BCD 110mm - 4 arm, BCD 104mm - Pinion 28 and 30 teeth |
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Rear Sprocket: |
- | 18t, 20t, 21t, 23t, 26t |
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Sprocket Acceptance: |
- |
- 9 Spline - 3 Spline (for Shimano Alfine) - Rohloff |
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Drive belt: |
- |
Tooth pitch: 14mm width: 7mm |
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belt length: |
- | 1260mm, 1344mm, 1400mm and 1610mm |
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switching systems: |
- |
- schlumpf drive - Shimano Alfine 11-Gang - Shimano Alfine 8-Gang - Nuvinci - Rohloff - Pinion |
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