Hill Climbing Assistance
- Thread starter metanewbie
- Start date
metanewbie
100 W
That’s a good question. If it can handle a front rack with a load is that different than the force of a front e-hub?
And the bikeOn, as well
bikeOn looks awesome, i think it would fit OP's wants really well ( easily removable ), too bad it's out of our theoretical budget.
Really hoping they get the price down next bike season. I kinda want one.
Really hoping they get the price down next bike season. I kinda want one.
metanewbie
100 W
Yikes. Super expensive, but interesting.
gromike
10 kW
From what I've read of meta's posts I think he would be most happy with one of these:
Turbo Vado SL 5.0 EQ
Turbo Vado SL 5.0 EQ
metanewbie
100 W
Awesome! You're amazing! You're buying it for me for Christmas, right?
Mongo
1 kW
When charging - yes, such as in ammo boxes or fire-resistant enclosures, and/or at "away" locations. While riding, not that I recall.
Using only known/proven cell suppliers & manufacturers, combined with time-tested construction practices hopefully reduces pack fire risk. Proper handling, charging, and luck too.
An iceberg e-bike topic, if there ever was one.
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Maybe not this model, but the Specialized e-bikes have been selling at deep discounts due to the inventory glut. I see the turbo como (lower end, $3400 msrp) for $1900 and change. Smaller motor, but still 70Nm.
docw009
10 MW
The Q100H is closer to 5lb than 3 lbs. The Q100C is narrower and may get under 4 lbs. Never used the cassette version,
I have several builds with them. Laced them all myself. All spoke ends must point out for a 20" wheel 1x cross. They used to cost 80 bucks plus 45 shipping. Now total price is closer to 180-200 dollars. I know some owners like the 201 rpm version in bigger wheels, I haven't heard about results with the lighter Q75.
They freewheel pretty good, but my 20" bikes w/o front derailleur don't have enough gearing to pedal well in my opinion, so the few times I had to run w/o power, it was hard work. On a bigger wheel, and with 21 speeds, it should be OK.
It is smoke that is the main killer, not fire. Smoke is toxic and flammable, so I don't think ammo box will help a lot. It might slow down, but not prevent. The only way is to charge and store batteries outside IMO.
While on a ride you should have enough time to react. Batteries don't explode like bombs. If you see smoke, feel funny smell, hear hissing sound etc - make sure you are at healthy distance from your battery.
One more thing - rim brakes eat rims. Faster on e-bikes. If you are not keen on wheel lacing then perhaps it is time to think of upgrading to disc brakes if possible.
Yes the main hubmotor forces try to twist the axle out of the dropouts. That force gets transfered to the fork legs, trying to twist them in the opposite direction of the spinning wheel. Combined with additive forces from hitting bumps and potholes.
Higher powered hubmotors are generally not advised for CF forks, also not advised for aluminum or magnesium suspension forks. CF has been shown to fail spectacularly when subjected to forces it was not designed for.
Will yours be OK? Hard to really know. Might be OK with a lower powered motor. A steel replacement could be the solution. Bonus: Relatively simple revert to stock bike condition.
Forks
Unlock superior performance in your bike with a fork that will change the way you look at the trail ahead. Two blades, one crown and a whole lot of durability go into all of our road, trail and mountain bike forks. Strengthen your connection with the ground below every time you set out to ride.
surlybikes.com
Yeah for safety & traction purposes i'd always put the motor in the back wheel when possible, even if it's wimpy.
I really don't like how CF fails either. I won't buy or use anything made with that kind of material.
I really don't like how CF fails either. I won't buy or use anything made with that kind of material.
metanewbie
100 W
Stock hybrid bike is carbon fork.Yes the main hubmotor forces try to twist the axle out of the dropouts. That force gets transfered to the fork legs, trying to twist them in the opposite direction of the spinning wheel. Combined with additive forces from hitting bumps and potholes.
Higher powered hubmotors are generally not advised for CF forks, also not advised for aluminum or magnesium suspension forks. CF has been shown to fail spectacularly when subjected to forces it was not designed for.
Will yours be OK? Hard to really know. Might be OK with a lower powered motor. A steel replacement could be the solution. Bonus: Relatively simple revert to stock bike condition.
Forks
Unlock superior performance in your bike with a fork that will change the way you look at the trail ahead. Two blades, one crown and a whole lot of durability go into all of our road, trail and mountain bike forks. Strengthen your connection with the ground below every time you set out to ride.
The folder is Chromoly frame and fork. And hydraulic disc brakes. Making me wonder if its the better ebike conversion option. But it has 16” wheels. It takes off like a rocket under pedal power.
I could use the folder for an ebike commuter and the 700c hybrid for fitness.
This is one of the primary reasons I am/was considering the friction drive, despite its shortcomings, it'd work on either without modification and there is a quick release adapter available to easily swap to either bicycle.
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ebike4healthandfitness
100 kW
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- May 19, 2012
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metanewbie
100 W
I've been through several iterations of both. I found that disc brakes would often overheat or fade when continuously going down steep hills, whereas my Magura hydraulic rim brakes have never had that problem.
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Appears you are still favoring friction drive, as it best suits your design priorities. Time to list those shortcomings and decide.
metanewbie
100 W
Is there a deadline?
Chalo
100 TW
The problem comes when you have to remove the wheel or replace pads. Then you'll waste so much time on those brakes that you'll wish you were stopping by dragging your sneakers on the ground.
P.S. - All rim brakes have the same maximum capacity for any given rim. No hydraulics required or even desirable.
metanewbie
100 W
I find the hydraulics easier to adjust when a wheel goes out of true and more responsive than mechanical.
metanewbie
100 W
This is the only rear hub kit I've found that supports a Cassette and V-brakes.
It seems it would allow me to keep my beloved Microshift Advent 1x9 — 30T / 11x38 drivetrain without alternation.
But my questions are
1) Would it help a bit with my uphill climbs?
2) Would the motor struggle too much?
3) If I turn it off, how much will it resist?
It seems it would allow me to keep my beloved Microshift Advent 1x9 — 30T / 11x38 drivetrain without alternation.
But my questions are
1) Would it help a bit with my uphill climbs?
2) Would the motor struggle too much?
3) If I turn it off, how much will it resist?
There's potentially hundreds of rear hub kits that fit this definition. Look for a machined sidewall.
Check with the supplier to see if it is a dual reduction geared hub motor. It doesn't look like one. Weight is not specified. Model is also not specified, so you need to find that out. before questions #2 and #3 can be answered.
My rule? no specs, no buy. Otherwise you're playing roulette with bad odds.
Recommend you spoke a wheel with a light motor that's optimized. That's how you'd get what you were looking for originally. Many hubs have been mentioned which are more suitable than this one which probably has a single gear reduction and is heavier than you wanted.
Check with the supplier to see if it is a dual reduction geared hub motor. It doesn't look like one. Weight is not specified. Model is also not specified, so you need to find that out. before questions #2 and #3 can be answered.
My rule? no specs, no buy. Otherwise you're playing roulette with bad odds.
Recommend you spoke a wheel with a light motor that's optimized. That's how you'd get what you were looking for originally. Many hubs have been mentioned which are more suitable than this one which probably has a single gear reduction and is heavier than you wanted.
metanewbie
100 W
"Designed specifically for our ADVENT Super Short and Sword Black, this 9-speed, 11-38T cassette provides wide range and low gears. It’s built with the same precision and durability as our wider range cassettes. And yes, it works with a standard HG freehub body and a normal 9-speed chain."
ADVENT H-Series 9 Speed Cassette 11-38 | microSHIFT
Designed specifically for our ADVENT Super Short and Sword Black, this 9-speed, 11-38T cassette provides wide range and low gears. It's built with the same precision and durability as our wider range cassettes. And yes, it works with a standard HG freehub body and a normal 9-speed chain.
www.microshift.com
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