Doing tandem gearing
05-26-23, 11:50 AM
#26
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Are there any tandems with a freewheel on the crank seems like it would help a lot having a freewheel on one of the two crank sets so that one could free wheel. Of course that would throw off the pedal synchronization. I just that about that because I have bike with a freewheel on the crank and the rear. It’s a motor bicycle.
05-26-23, 12:37 PM
#27
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I think the "massive rear" disc is intended to be a drag brake for long descents, not for everyday stopping (although it seems more than adequate for that purpose as well). The extra-large disc is intended for heat shedding, not performance. As I recall, these super-sized discs replaced the Arai drum brakes with large heat sinks found on older tandems.
Although the original cantilever brakes are good, replacing the front brake with a properly-adjusted V brake should be strong enough to skid the front wheel. That being said, testing it in such a manner with a stoker on board can result in strong words and possible violence from the back seat, along with involuntary nocturnal relocation to the couch (don't ask me how I know these things, but being able to skid the front wheel briefly seemed cool at the moment).
Although the original cantilever brakes are good, replacing the front brake with a properly-adjusted V brake should be strong enough to skid the front wheel. That being said, testing it in such a manner with a stoker on board can result in strong words and possible violence from the back seat, along with involuntary nocturnal relocation to the couch (don't ask me how I know these things, but being able to skid the front wheel briefly seemed cool at the moment).
Last edited by maddog34; 05-26-23 at 12:49 PM.
05-26-23, 12:55 PM
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Are there any tandems with a freewheel on the crank seems like it would help a lot having a freewheel on one of the two crank sets so that one could free wheel. Of course that would throw off the pedal synchronization. I just that about that because I have bike with a freewheel on the crank and the rear. It’s a motor bicycle.
05-26-23, 02:41 PM
#29
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As I recall, the old Shimano Front Freewheel System was only offered on one-piece cranks, which are incompatible with the Ibis' bottom brackets.
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Richard C. Moeur, PE - Phoenix AZ, USA
https://www.richardcmoeur.com/bikestuf.html
Richard C. Moeur, PE - Phoenix AZ, USA
https://www.richardcmoeur.com/bikestuf.html
Last edited by RCMoeur; 05-26-23 at 02:43 PM. Reason: adding FFS reference
05-26-23, 03:11 PM
#30
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The Shimano FFS was offered in an Al cotterless design, few bikes used it and aftermarket FFS was a pretty much non existing thing so many shops never saw one.
daVinci's independent freewheeling design is pretty cool and actually fairly easy to reestablish close enough sync for those who get use to it. We rest rode a couple in the oughts when I worked at Allstar Bike Shop. Being the region's tandem specialist shop we saw a lot of tandems we didn't sell and I have done a bit of service on one. When I test rode it with a co worker (he captained due to my legs being lacking in length) the ability to freewheel wasn't a hard function to get use to. and resyncing only took a pause or two in my strokes. However it does require some frame mods to be able to install. Not for the faint of heart. Andy
daVinci's independent freewheeling design is pretty cool and actually fairly easy to reestablish close enough sync for those who get use to it. We rest rode a couple in the oughts when I worked at Allstar Bike Shop. Being the region's tandem specialist shop we saw a lot of tandems we didn't sell and I have done a bit of service on one. When I test rode it with a co worker (he captained due to my legs being lacking in length) the ability to freewheel wasn't a hard function to get use to. and resyncing only took a pause or two in my strokes. However it does require some frame mods to be able to install. Not for the faint of heart. Andy
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05-26-23, 04:55 PM
#31
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My gas bike has crank arms that has threads for a freewheel on it.
that’s what I’m trying to describe because it’s the only one I’ve ever came across.it’s a square taper. So I should be able to use it. If ever I felt inclined.
check out what I found tho
that’s what I’m trying to describe because it’s the only one I’ve ever came across.it’s a square taper. So I should be able to use it. If ever I felt inclined.
check out what I found tho
05-26-23, 05:49 PM
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Looks to be rehashing the FFS design. If Intend is selling these I hope their legal dept has done the patent searching well. My Google just now shows a 2021 date for the first hit... Perhaps Shimano has already had a "talk" with them Andy
Andy
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05-27-23, 11:45 AM
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A few suggestions for a novice tandem owner:
For a new stoker's first few rides on the tandem, avoid traffic, keep the hill climbing to a minimum, and pick a much shorter route and a lower average speed than you yourself would otherwise prefer.
One good approach is to plot a route with a pleasant lunch stop or an equivalent enjoyable destination about 3/4 or 4/5 of the way into the ride, so you have only a short ride back to the start point after the stop.
For a new stoker's first few rides on the tandem, avoid traffic, keep the hill climbing to a minimum, and pick a much shorter route and a lower average speed than you yourself would otherwise prefer.
One good approach is to plot a route with a pleasant lunch stop or an equivalent enjoyable destination about 3/4 or 4/5 of the way into the ride, so you have only a short ride back to the start point after the stop.
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05-27-23, 12:39 PM
#35
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I got to ride it with a friend we enjoyed it. We just went up and down the street. I felt how some might fight for the pedals. This particular friend is fine with me being in control. He will admit I have the better I sight of us both. He lacks peripheral. So it’s his preference to be the stoker. I’m trying to get him to ride it with me this Sunday on a bike ride a group is hosting.
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