The Nireeka bike is a fantastic, stylish, light and smart eBike. We are going to be proud to ride it!
BUT, there is a problem.
If you are like me, you did not think about the gears when you decided to buy the Nireeka. Unlike those old bikes we all used to have, this one is not equipped with 21 gears in a 3x7 combination.
Now in 2018 the single drivetrains are here and this is great and much more reliable. Except for the fact that you have to pick one that suits your needs.
At the moment with the mounted gearset the Nireeka is a light offroad bike and street cruising bike.
How did you plan to use your Nireeka? To avoid disappointment everybody should think about this now!
If you are more into offroad or more into higher speed or just want an overall better gear range, this proposed upgrade is for you.
The problem has been discovered by steveting99 and he opened this thread a month ago:
A number of backers did colaborate on that thread and did research to find a compatible solution with a better gear range and it got fairly technical. As GraXXoR said, we finally found the “golden bullet” at a very affordable pricepoint.
This thread is now here to show you in plain English and graphics the problem and the solution.
If you had one of those old (or new!) bikes with 21 gears you probabely had a very good gear range with very low gears for offroad or uphill and very high gears for speeding. You could for example manage to climb a mountain with the speed of a jogger on the lowest gear pedaling around 80 times a minute (Cadence /RPM). Or you could use some leg power with 100 RPM on the highest gear and reach more than 30mph or 50kmh. Our all new sexy Nireeka will have this configuration: Notice that all the graphics are on scale. What you see is what you get. These are good 10 mid-range gears. Perfect for cruising, for relaxed easy biking at up to 20mph or 32kmh as they say on the Indiegogo Nireeka story. All good, but only if you are not too much into offroad or facing steep slopes on the road. And if you do not want to speed up! Your super powered Nireeka with the 1000W motor does reach 30mph! If you would like to use pedal assist you will have to pedal 120 times in the minute to keep up. This is just too much legwork if you are not a pro. A good biker does about 100 rpm.
So at 30mph you are out of gears. You are spinning out!
The only way to reach that speed is using the throttle. In a lot of countries the throttle is not allowed, so that is not an option. Even if you can use the throttle and are allowed in your place to reach 30mph by motor power (where?!?), consider that the battery will be drained heavily by using only the motor with no help with your legs. What about offroad? With the current gearset the lowest gear is not low enough for some serious offroad climbing. And there is only few low gears available. Sure you can get the motor to help you, but that is cheating. Say you run out of power. If then the gears are too hard to take you up the hill, the bike is not good for that terrain. And by the way, if the gear is hard for you, it is hard for the motor too! (And yes. This is bold!) THE SOLUTION
There is different ones, but at the moment the most economic one seams to be a Wide Range Cassette.
The good ones have 11 or 12 cogs, going from as low as 9 teeth to as big as 52 and do require some major modifications to the bike. And they are very expensive.
However there is a few affordable ones that fit with little mods our Nireeka with an upgrade cost of just over 100USD. For example the Sunrace MX80 11-50t cassette with eleven gears that needs only another shifter and a different chain.
This cassette offers a much greater range, jumping from the 36 we have right now to 50 teeth on the biggest cog. This provides a much better perfomance on the lower gears. The difference is outstanding, right? This is how it will look like on the wheel. It will cover nicely the entire 500W motor and still be smaller than the 1000W motor. It is big, but it will not destroy the refined aesthetics of our Nireeka. Now that we have the wide range cassette with matching shifter it is very easy for anyone of us Nireeka owners to change ourselves the front chainring if we want to get even better performance in our prefered speed range.
If you are seriously into offroad, just use a smaller chainring and shorten the chain.
If you are a serious commuter, travel long distance and want speed, use a bigger chainring and get a larger chain. To make the most of our Nireekas and be able to easily further customize them to our needs, the wide range cassette is the most important upgrade ever. Max has already agreed to change the gearset on request. This proposed configuration with the wide range cassette is here to make things easy for the N-Team and save much hassle with countless custom build requests.
Basic is fine. Want to get serious? One upgrade only that caters for everybody!
Does this make sense to you? Do you wish the N-Team to offer this upgrade?
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