GRUBER Assist-
a high-quality tuning product for your bicycle:
GRUBER Assist is an ultra-light drive for mountain bikes, trekking cycles and tour cycles, suitable for later installation. The skilfully conceived Gruber motor is invisibly built into the bicycle (seat tube with an inner diameter of 31.6mm required) and scores especially highly on account of its light weight (900 g).
A touch of the Turbo button on the handlebar – and the burning sensation in your thighs disappears – the healthy perspiration, however, remains. The auxiliary drive, with its 200 watt of additional power, promises a performance increase of up to 100% – for min. 45 minutes at full load. When the drive is switched off, you continue cycling as normal. GRUBER Assist guarantees pleasurable cycling without a red face!
Product attributes
• The electric motor is very light
• The propelling assistance is invisible
• Cycling becomes fitness cycling and is thereby healthier
• Thanks to its retrofit kit, it is almost irrelevant what brand of bike you have
• The pedal assistance brings speed on flat and power going uphill
The GRUBER Assist doesn’t have a blocking at 25 km/h and isn’t allowed for the public traffic. If you want this blocking, we certainly can install it for you.
Briefly in summary, the most important functions of the GRUBER Assist in a Spot:
Download this video: [ QuickTime large ] [ QuickTime small ] [ WMV ]
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An explanation of the cruising range of motorised bicycles
Hybrid bicycle capacity = personal contribution + electric drive
Table to battery and engine contribution – the personal contribution of the cyclist is unconsidered!
Battery
capacity in
Ah |
Consumption
of the engine in
Ampere* |
Running time
in
minutes |
Range at a speed of
6 km/h in
km |
Range at a speed of
12 km/h in
km |
Range at a speed of
25 km/h in
km |
| 4,5 |
3 |
90 |
9,0 |
18,0 |
37,5 |
| 4,5 |
6** |
45 |
4,5 |
9,0 |
18,8 |
| 4,5 |
9 |
30 |
3,0 |
6,0 |
12,5 |
| 4,5 |
12 |
22,5 |
2,3 |
4,5 |
9,4 |
| 7 |
3 |
140 |
14,0 |
28,0 |
58,3 |
| 7 |
6 |
70 |
7,0 |
14,0 |
29,2 |
| 7 |
9 |
46,7 |
4,7 |
9,3 |
19,4 |
| 7 |
12 |
35 |
3,5 |
7,0 |
14,6 |
| 10 |
3 |
200 |
20,0 |
40,0 |
83,3 |
| 10 |
6 |
100 |
10,0 |
20,0 |
41,7 |
| 10 |
9 |
66,7 |
6,7 |
13,3 |
27,8 |
| 10 |
12 |
50 |
5,0 |
10,0 |
20,8 |
* The consumption (Ampere) results from the strain of the drive – many manufacturers use the following terminology: Eco (3 Ampere), Normal (6-9 Ampere) and Sport (12 Ampere).
**GRUBER Assist at maximum load
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