Author Topic: ActionBent Recumbent  (Read 292 times)

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Offline CWBurcar

ActionBent Recumbent
« on: September 26, 2021, 12:09:35 am »
I have stumbled across a Actionbent recumbent in a local bike shop and was wondering if anyone has had any experience with one? The one in question looks similar to a Bacchetta Giro but slightly different frame. From what I can tell it seems like an older brand no longer in production. Any information would greatly be appreciated.

Are they reliable?
Tour worthy?
Something that can be easily fixed?
etc

Offline misterflask

Re: ActionBent Recumbent
« Reply #1 on: September 26, 2021, 10:14:45 am »
Well, let me stir something up here.

Bents with single booms load in bending, as opposed to diamond frame bikes which load mainly in compression and tension.  Having designed a 'boom bike', I know that getting bending loads down to a manageable level is a challenge and loading a bike with gear would make it worse.  So I would be concerned about fatigue in a used, loaded boom bike.

Of course, I'm concerned about fatigue in everything.  Good chance that the forum can offer empirical evidence that it's not an issue.

Maintainable? Does it have standard components in good condition?  Are the chain idlers mounted on the frame some weird unobtainable custom thing?

I'm guessing you're a dedicated bent rider (are there any other kind?), but if you're just toying with getting your first, I don't know that I would jump into touring.  The arguably lower stability on slow climbs would be a key issue.  I did ride briefly with a bent rider in the Rockies, though, and he seemed happy.

Offline jcostanz

Re: ActionBent Recumbent
« Reply #2 on: September 26, 2021, 10:46:35 pm »
I would recommend searching and or posting on Bentrideronline.com  There are quite a few older posts that discuss the brand

Offline canalligators

Re: ActionBent Recumbent
« Reply #3 on: September 30, 2021, 10:05:11 pm »
Flex depends on the bike.

Single tube recumbents with smaller tubes, say <2.5", do bend in use, and bend an amount that is unacceptable to me.  I wouldn't be concerned about weakening with bend cycles, as much as the pedaling losses.  My first bent flexed a lot, and that's one of the reasons I upgraded.  My current touring machine has three tubes running full length and doesn't flex at all - I'm sure it's stiffer than most DFs.  I also have a monotube low racer, which has a 3.3" tube, it hardly flexes.

I sat on a couple of trikes in my LBS.  They had monotubes to the crank.  They both flexed less than my old 'bent, but more than I liked.  Not all trikes flex that much, though.

As for empirical evidence, I follow a couple of user groups and can't remember hearing of a recumbent frame breaking.  Fatigue is not the shortfall, inefficiency is.

Poor low speed handling can be an issue, but again it depends on the bike.  My first one was instable below 4 mph and kinda weird above 30 as well.  My current ones (single, lowracer and tandem) all handle well at both low and high speeds.  DFs are still better at low speed, but mine are ok down to walking speed.  I'm happy with them.  And in the balance, I'd rather suffer a slower climbing speed, and reap the benefit of a better bike to fight headwinds.

I'm not evangelizing recumbents, whatever works for you is fine.  Just clarifying some points you made.