Category: rims

COSTLY HOBBY or TEARING IT UP HERE, BOSS

You are looking at  one of many very real menaces and causes of costly repairs. Yep, while riding on a trail ( glorified sidewalk) and crossing a city street I was keeping my eyes on the cars to try to stay safe. Consequently I was not looking down at the pavement I was riding on. About the middle of the intersection I suddenly experienced a major catastrophe. My rear wheel went down suddenly into some sort of hole hitting very hard and the tire went flat instantly. The tire was wore out anyway and I was less than a mile from home so I just rode slowly on the flat to get on home. I installed a new tire and inner tube and was ready to ride. I did not realize that my axle had got bent in the harsh impact of hitting the nasty hole. The motor still works fine electrically but when the wheel turns it sounds like there is gravel inside making a lot of noise and sometimes other loud embarrassing and annoying noises are emitted. The wheel isn’t all that old … probably less than 2500 miles on it. However, with this problem going on I have no choice but to replace it. I am checking into whether or not I can buy just the wheel with the motor laced in it rather than having to buy the entire conversion kit. I think I can. But even if I have to buy the entire conversion kit there is good news … the cost has been reduced from $469 to $416. And having an extra controller on hand would be nice. Anyway, as noisy as it is I am hoping it holds up until I can replace it.

Over the years I have spent well over $1500 in various repairs … mostly on broken spokes and new rims and complete wheels which Fort Wayne, Indiana’s infamous pot holes have broken and/or destroyed. It gets old. It is quite frustrating and maddening. Personally I think the city should be liable for such expenses people incur. Of course, since the city has no money of its own that means that tax payers would be footing the bill. Anyway you look at it it just isn’t fair. I love riding my trike but it sure is an expensive “hobby”. One thing for sure … ya gotta pay to ride.

UPDATE — I got some good news. My rear wheel didn’t receive any damage after all. What did receive damage is the freewheel (rear sprockets) which I had planned on replacing soon anyway. The new one is suppose to be delivered today so I am a happy camper …. well, probably better make that happy triker. Now I have a new e-motor conversion kit on its way which I have no immediate need of. Oh, if I ever need it I will have it.

KEEP ON TRIKIN’

A FREE GIFT AWAITS YOU!

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INSTALLING A REAR HUB MOTOR KIT

My eZee rear hub motor came from Grin Technologies and I installed it myself. Here is a video showing the installation process on a bicycle. It is similar on a trike.

I did not need the torsion bar as the eZee hub motor does not have anywhere near enough power to need it.  I had to spread my rear dropouts further apart to fit the unit in. The wheel my eZee motor was laced into did not hold up. I had to replace it . I bought a much stronger BMX rim and had it laced up by a professional wheel builder at my LBS. It has held up fine. After my experience with BionX and Golden Motors I have been well pleased with the eZee hub motor.  And then when I tried the Tongsheng crank drive motor which greatly disappointed me the eZee was a joy to go back to. The only disappointing thing about the eZee is I don’t have pedal assist … only a hand throttle. Oh I bought pedal assist when I first got the eZee hub motor kit. I paid a lot of extra money for it and still had to pay more for a different crankset as my Catrike crankset would not work with the torque sensor. Then I paid more to have my LBS install the torque sensor for me (with my assistance) only to discover that the torque sensor didn’t work. Grin Technologies sent me a different one but it required an even different crankset which we could not find available so I never got the torque sensor installed. It was just a lot of wasted money and effort. So during the 4 years I have had the eZee hub motor I have only had a hand throttle. Now I have gotten good at using it … so much so that I can pretty well duplicate what pedal assist feels like. One thing about it just buying the hand throttle would have saved me several hundred dollars which I ended up wasting. My advice to anyone wanting pedal assist is to by a unit with it built in. The eZee motor does not have it built in and the separate torque sensor which goes into the crankset bottom bracket is not at all practical. If I knew then what I know now I never would have bought it.

KEEP ON TRIKIN’

A FREE GIFT AWAITS YOU!

You are invited to come join the Tadpole Rider Facebook Group. Please note that in order to join you must first answer the two membership vetting questions and agree to comply with the group rules.

eZEE HUB MOTOR REVIEW

I have had my eZee hub motor now for over 3 years so I thought I would write a review on  it. After my bad experiences with BionX and Golden Motors the eZee motor has been reliable and performed relatively well for me. That is until recently. I am having trouble with it so I have replaced it with a different brand. I bought a Tongsheng crank drive motor which is what I have been considering if ever I were to buy another motor. That being said I did not know about the newest Bafang crankdrive motor that now has a torque sensor. I probably would have bought it instead of the Tongsheng if I had known about it sooner. The trouble I am having with the eZee motor system has nothing to do with the motor as far as I know. Personally I think my controller is acting up. I bought my eZee hub motor conversion kit from Grin Technologies. I have emailed them several times over the 3 years I have had it requesting their help on a few things. They have replied back but they have never really helped me. Overall the eZee motor has been good but I do want to cover the few things which have not been good. The eZee motor does not have built in torque sensing so a separate external torque sensor which mounts in the bottom bracket must be purchased. It is not cheap. And what they don’t tell you is that in order to install it it requires buying a new crankset … also not cheap … meaning this is all getting rather expensive.

 

I bought the new crankset and paid my LBS to install the torque sensor in the bottom bracket. The torque sensor didn’t work. Grin Technologies then told me that they have had a lot of problems with this particular torque sensor. (It would have been nice if they would have mentioned that upfront and advise against buying it.) They advised me to try a different one which they would send to me at no additional charge. All they asked is that I mail them back the defective one which I had to pay postage on. When I received the new torque sensor I discovered that it required yet a different crankset. My LBS looked but could not find one to order. So for over three years now all I have had is a manual thumb throttle to use. I have not had a torque sensor for pedal assist. All of this mess and expense could have been avoided if only the bicycle industry would standardize the cranksets instead of making various types and sizes.

The rear wheel which the eZee hub motor was laced into did not hold up for me. It cracked open and I had to replace it. This added a lot more expense to my e-trike. I now have a rear wheel which is holding up great. But why doesn’t the supplier of the eZee hub motor provide a rear rim which is better made?

The eZee hub motor requires the older type of rear sprockets known as free wheel. Just recently the free wheel unit has started acting up spinning forward instead of grabbing to propel the trike forward. That’s not good. I went to my LBS and they looked up 9 sprocket free wheel units only to find nothing available like I have now. I would have to sacrifice my lower gearing going from a 34 tooth sprocket to a 30 tooth. My system is just too old and it is hard to find these component parts for it. The industry has gone to 10 and 11 speed. 9 speed has become an antique so to speak. Anyway, they lubricated the free wheel unit and it has been working okay since then. I don’t know for how long though. What I am getting at is it is time to move on. I have the Tongsheng motor kit installed but I am waiting on an extension  cable so I can hook up the speed sensor to get it all working. That cable just arrived in yesterday’s mail so I will be installing it today.

Oh, another thing about the eZee hub motor I don’t care for is that in order to change the nylon gear inside the motor the electrical wiring coming out of the motor has to be cut in two to disassemble it to change the nylon gears. Then all those wires need to be reconnected and resealed when reassembling it. I think they made a change in this in the newer model they are manufacturing. They say the nylon gears inside the motor should last about 9000 miles I think. I had over 40,000 miles on the motor so I ordered a new gear and went to change it when I discovered this about having to cut the wires. I didn’t want to get into that. Even though I had several times more than the 9000 miles on the hub motor the nylon gear inside still looked like new so I simply regreased it and put it all back together. It is still sounding and working the same as it always has so I assume the gear has not worn out yet.

The eZee hub motor is a geared reduction motor meaning that is should be very powerful …   more so than the 350 watt BionX motor I started out with which was a gearless direct drive unit. For some reason unknown to me I have never been able to get any help from Grin Technologies as to why this motor lacks power (torque on demand). It should easily out perform the BionX but just the opposite is true. From a standstill or low speed up to about 12 mph or so the BionX will easily shoot away from my eZee hub motor. Once I am up to 12 mph or so I start gaining on the BionX and pass it by leaving it far behind. It has good top end … 28 plus mph … but on hills I have to assist it as it just does not have the power to climb hills. My BionX would shoot me up and over if I used the hand throttle.

Well, that is my review. Could I recommend it to others? No, not really. If these issues I have described didn’t exist then yes, I would recommend it. But hey, they do exist and as I have stated I have not been able to get any help to resolve them. It is time to move on. I want to get this Tongsheng working and see how it does. It will be great to have a torque sensor and true pedal assist.

KEEP ON TRIKIN’

A FREE GIFT awaits you!

REAR WHEEL DIAMETER … 20 VS 26/700

Frequently the subject of rear wheel size comes up as people want to know which is better or preferable. I don’t think I have ever addressed this in all my many postings. Since it is asked so frequently I figured it is past time to do so.

Well, like most everything else there are pros and cons involved. I have had both a 26 inch rear wheel as well as a 20 inch rear wheel. Personally I didn’t notice all that much difference. Never the less I will cover the good, the bad and the ugly of the matter. Don’t ask me why I said that. All I can say in response is that it happens to be the movie playing on GRIT TV as I am composing this.

Let’s start out by covering the obvious … or at least what should be obvious. Having three 20 inch wheels on a trike means that you only need to deal with one size when it comes to spare inner tubes and spare tires to carry along with you.

What may not be obvious is in the realm of performance and handling as well as weight carrying capacity. That is something to consider if you plan on touring and loading the trike down with gear.

A smaller diameter tire will accelerate faster than a larger diameter wheel. That being said a larger diameter wheel will result in a higher top speed than a smaller one. Of course, I am talking about having stock gearing and not messing with the gear ratios. Once one starts changing the gear ratios all of this can and does change. One can accomplish the same things with existing wheel diameter by changing the sprockets diameters in use.

A larger diameter wheel will roll over objects easier than a smaller diameter wheel which means that a larger diameter wheel yields a smoother ride than a smaller diameter wheel.

A smaller diameter wheel is stronger than a larger diameter wheel so it will carry more weight and handle better. A larger diameter wheel has more flex to it than a smaller diameter wheel so it is noticeable in cornering.

A smaller diameter wheel is usually less costly than a larger diameter wheel when it comes to tires to install on it. That being said 26 inch is a very common size with lots of tire choices available. So one might very well come across some good prices on tires.

A smaller diameter wheel requires a smaller trike frame. That may or may not make any difference to people. It is just something I wanted to be sure to point out.

When it comes to folding a trike again obviously a smaller diameter rear wheel folds smaller than a larger diameter wheel.

I have mainly been talking about 20 and 26 inch wheels. I only mentioned 700. Another popular size is 24 inch. They have their advantages but know that 24 inch tires are not as common as 26 inch so the selection won’t be as good.

Changing from one size to another may be problematic as the trike is designed for a certain size. The frame may not be built so that a larger diameter wheel and tire will fit. Also making a change in the rear wheel size will effect the trike’s handling and it may not be as safe. Raising the rear of the trike with a larger diameter wheel/tire will result in lowering the front end of the trike. This will bring one’s feet closer to the ground and cause more of a concern in the matter of “leg suck” and injury.

Anyone considering a hub motor a larger diameter wheel provides more room for a motor to be installed. That means there are more choices of hub motors and with more space available a more powerful motor can be installed than what will fit on a smaller diameter wheel.

Personally I prefer a 20 inch wheel over a larger diameter. It comes down to a personal choice. With either choice one can …

ENJOY THE RIDE

A FREE GIFT awaits you!

ALL THOSE IN FAVOR OF GETTING RID OF PRESTA VALVES …

Most all of us grew up with Schrader valves as Presta valves were unheard of. But as time passed along came “skinny Minnie” and the controversy began. I had never heard of Presta valves until I bought my 2009 Catrike Trail which came with them. It didn’t take more than a couple of days before I learned to hate Presta valves. I say that the French can have them. I think they are ridiculous. So soon after purchasing my trike I took action and did something about this. I drilled out my rims to accommodate Schrader valves and never looked back. I have not had to deal with Presta valves since. HERE is a good article on this subject.

I vote for getting rid of Presta valves. I sure would not miss them. There is only one thing about Presta valves that I like and that is the threaded metal stem with the nut which tightens down keeping the stem from pushing into the rim. At least 3 inner tube manufacturers offer this feature on their Schrader valves and I use them whenever I can.

I am totally amazed when I hear/read of cyclists who actually like and prefer Presta valves over Schrader. It is one of those “I don’t get it” things … like … what’s wrong with them? Oh well, to each his own as they say. Hey, if Schrader valves were good enough for Benjamin Franklin’s dad they are good enough for me. What did I just say? Oh never mind. Just know that I am for Schrader valves and against ol’ skinny Minnie. France can keep them. Schrader valves work just fine. They help me to …

ENJOY THE RIDE!

A FREE GIFT awaits you!

 

 

GOING HEAVY DUTY IN THE WHEEL DEPT.

I bought new front wheels from Catrike in 2018 to replace my original 2009 wheels that had gone the course. They were in bad shape. I was so thrilled to have new wheels on my trike but the thrill was short lived as the new wheels were in worse shape than my old ones in only about a month’s time. In fact, I have been using one of my old wheels for months now as it is in better condition than the newer one. The local streets and trails are in such bad shape that the bumps and holes are destroying my rims. My rear rim that came with my electric hub motor was also destroyed and had to be replaced. I bought a much heavier duty BMX rim to replace the rear rim. I am pleased to report that it has been holding up quite well. So now I am buying two more BMX rims and having my Catrike hubs laced into them. They are the Sun Ringle Envy (rear) rims and are black in color not white as pictured below.

 

They are considerably wider than the Catrike rims which gives them considerably more strength. Truthfully they probably are not what I would have selected as I like the extra structural pieces available in some other rims I have looked at. The picture below illustrates what I am talking about.

My local bike shop suggested these Envy rims to me and I trusted in their expertise. They assure me that they will be quite strong. Still I would be more comfortable with rims like the one I pictured above as I know they would be stronger.

I am also installing Schwalbe Big Ben Plus tires in place of my beloved Marathon Plus tires.

I am going with heavy duty inner tubes in the Big Ben Plus tires hoping that they will help in preventing flats … externally caused as well as internally caused. They are 5 times thicker than a standard inner tube. I used them once before but they are just too big and difficult to install in smaller sized tires, especially Marathon Plus which are more difficult to install than other tires.

I am still using baby powder inside of my tires and on my inner tubes. The Big Ben Plus do offer some flat protection but they are 40 % less effective than the Marathon Plus tires … meaning that I am concerned about getting flats. I am hoping all goes well and these balloon tires provide enough cushioning to ensure the new rims hold up okay.

I know I will miss certain factors about the Marathon Plus tires. Probably the biggest factor is the incredible mileage I get out of them. I know that these Big Ben Plus tires will wear out much quicker. That means that they will be more expensive to use. I understand that they are suppose to provide fairly decent rolling resistance performance so that is good. Of course, having e-assist helps eliminate some of the concern over this. I may only use them until they wear out and go back to Marathon Plus. I will just have to wait and see. Meanwhile I plan on …

ENJOYING THE RIDE.

A FREE GIFT awaits you!

UPDATE 10-19-2019 … I installed the new wheels with the Big Ben Plus tires today and went for a long ride. I am quite impressed with the tires thus far. They ride nice, roll very good and handle extremely well. Time will tell as to their flat protection and mileage.