Hardergamer
100 W
- Joined
- Jan 7, 2017
- Messages
- 103
Brum: what was your last rear tyre?
Hardergamer said:Brum: what was your last rear tyre?
litespeed said:Love your wit and charm but could not disagree more on the "slow & heavy" part. 115 lbs on a 19 horsepower peak electric bike is not heavy or slow.
To define a bicycle your absolutely right but these are not your average bicycles...thus the reason for multiple thousands of members all merging here to discuss electric bicycles and such....we are using the term bicycle in the loosest terms and you appear to be swimming upstream here but believe me, I get you.
Did I mention that I love your wit and charm?
Tom
liveforphysics said:I run bicycle tires on the unpowered wheel (front) and a moto tire on the powered wheel.
It is a notable weight penalty, but I can't seem to keep air in a bicycle tire for more than a day or two.
litespeed said:115 lbs on a 19 horsepower peak electric bike is not heavy or slow
brumbrum said:Hardergamer said:Brum: what was your last rear tyre?
Hi, it is a chen shin C186 3.00x17" they are about £40. You have pm btw.
Of course, frame is only a part of the complete list of components that are making the total weight of a bike. It is easy to add weight, but saving weight without compromising riding quality and reliability can be complicated at first, and at some point the last bits are very expansive.litespeed said:I live in the show me state........not sure how a frame can make 45 lbs difference considering mine doesn't weigh but half that.
Tom
atarijedi said:brumbrum said:Hardergamer said:Brum: what was your last rear tyre?
Hi, it is a chen shin C186 3.00x17" they are about £40. You have pm btw.
I saw you have Manitou Dorado forks on your bike, are they Pro or Experts and how do they ride?
MadRhino said:I am not a weight weenie, if I was I would be into lower power mid drives for a better " bicycle feel ".
I am into performance, and when I reached the power limits of a hub build, I worked on weight and geometry to improve effective power transformed into motion. Every pound saved is adding effective power to a bike, just as good as feeding more Kw, only without the heat and motor reliability issues. Minor geometry changes are also making a neat difference, especially in managing hard acceleration, and high speed handling.
I have considered using a motorcycle mid drive, but not for my daily mountain or city rides. I see it better for a big, long distance cruiser for weekend trips with GF and luggage.
Quokka said:Thing that scares me about bike tyres is when they go pop and you have a 15-20 km walk on your hands. Done that once and never again i hope
a_ski_racer said:I am planning to use motorcycle wheels on my next 2wd build. Parts are ordered. 80 - 85 km/h is the target. Some questions based on what I saw in this thread:
Why does no one suggest 21 inch motorcycle rims? A 21 inch rims plus the tires comes out close to the diameter of a 26 in mtb wheel? That's what I am using.
How effective are the hub fins for cooling? The fins are oriented across the airflow which isn't optimal. I will need extra cooling on my motors and was considering trying these so I wonder if you have any data on actual temperature drop with the hub cooling fins.
Steering at high speed - for those who have ridden motorcycles (street, not dirt) and bicycles you know that they feel different. To turn a motorcycle you push the handlebars opposite the direction you want to turn. The motorcycle mass and the gyroscopic forces from the bigger wheels dominates the steering dynamics at higher speeds. On a bicycle our body weight dominates but push steering works too, you just don't realize you are doing it. When an electric bicycle is getting to motorcycle speeds, with motorcycle wheels, does the steering response start to feel like a motorcycle or does it still feel like a bicycle? Just wondering about steering feel compared to a motorcycle because I haven't seen any comments about that in the topics I have read.
Steve