Kinect BodyFloat 2.1 compatibility

[sephknite]

Hey all.

I'm looking to pick up the Bodyfloat 2.1. I emailed Cirrus Cycles and they tell me that they don't have a shim to 33.9mm (my bike's size).

I'm wondering if this shim will work with a 27.2mm Long (420mm) Bodyfloat:

https://www.amazon.com/Zadaro-Seatp...1-fkmr0&keywords=27.2+to+33.9+shim&th=1&psc=1

 

[Nova Haibike]

In a word, yes.

 

[sephknite]

Hello. Thanks for the reply. I was guessing/hoping it would work, but just to reiterate-- My bike is this one: https://www.alibaba.com/product-det...827.html?spm=a2700.8443308.0.0.40113e5f8SPNjf


When I contacted Cirrus Cycles, I was asked if it was for an Elby, which I said it wasn't. When I showed them the link above, they replied:

"Oh dear!

We have a problem then as the post on that bike does not taper in the same way that the post on an Elby does and we have not found a commercially available shim to 33.9 from any source.

At this time we have no solution to this problem.

Sorry."


I then replied and asked for any BodyFloat 2.1 420mm regardless of the diameter that will fit a 33.9mm, and they replied:

"We have not yet found a shim that goes to 33.9 mm so the only option I see is to aquire a seatpost from an Elby bike to which we can bond our front link and then attach the rest of our unit. We have done several of these and they work well.

Let me know if you find that plan attractive."


I just wanted to make that clear before pulling the trigger, as the BodyFloat 2.1 is quite pricey; though if I get it through Amazon, their return policy is quite nice if it doesn't fit.


Lastly, is there a performance between the 2.1 and 3.1? Other than weight, length, carbon vs aluminum, is there a reason to get the 3.1 over the 2.1?

 

[Alaskan]

https://www.aliexpress.com/item/27-...Post-Tube-Adapter-conversion/32685106242.html

 

[Nova Haibike]

I am confused about what Cirrus Cycles as telling you. The shim you linked to should work. That aside, you bike has fat tires and rear suspension; why in the world would you need to add a suspension seatpost?

 

[Alaskan]

I am confused about what Cirrus Cycles as telling you. The shim you linked to should work. That aside, you bike has fat tires and rear suspension; why in the world would you need to add a suspension seatpost?

My bike has a rear suspension and 2" Big Ben Tires. I already had a Kenekt (formerly Cirrus) Body Float seat Post when I bought it.

I rode the bike without the Body Float and then added that to the configuration. It made a notable difference albeit a smaller one that it would have on a hardtail.

The Body Float smooths out higher frequency road vibrations, such as those made by small rocks, manhole covers and other shallow or small road imperfections. The suspension more effectively deals with bumps, pot holes and generally larger, lower frequency imperfections.

Working together not only gives one's backside a more comfortable platform but also provides a greater sense of control and safety with the tires maintaining more consistent contact with the road.

 

[sephknite]

@Nova Haibike : Sorry if I wasn't clear--I emailed Cirrus Cycles to recommend one of their shims to go along with their BodyFloat, to which they said they didn't have the size. I later found the Zadaro Shim on Amazon, so I'm trying to find out if that will fit before I pull the trigger. But checking out the shipping time/cost, it may take 3-4 weeks for free shipping or $45 to ship to me. So I'm wondering if I should go with this one:

https://www.amazon.com/gp/product/B07FQR1BLG/ref=ox_sc_act_title_1?smid=A1QA3INZ86IJN9&psc=1

Or I can go with Alaskan's shim suggestion (thanks for suggestion!)--I don't know how long it'd take to ship to the states, though.

Even with fat tires, my current stock post/saddle is not a comfortable combo. I purposely have the tire psi set to around 16/20, and my backside was in a bit of pain after 20 minutes. So, yes, like what Alaskan is saying--little bumps and mini-potholes can be felt.

 

[Alaskan]

It looks like these guys might have one here in the USA http://gravitydropper.com/98-shims-for-other-diameters-2/

 

[sephknite]

It looks like these guys might have one here in the USA http://gravitydropper.com/98-shims-for-other-diameters-2/

I'm assuming it would be the 34.0mm from 27.2mm. Will that .01 from 33.9mm matter?

 

[Alaskan]

The 34mm is likely to fit okay. However if it is too big, putting it on a dowel in a vice and sanding off .1 mm with a 12"x2" strip of medium and then fine emery cloth should be pretty easy. You could even us sandpaper. That is not much material to be removed if it has to come off.

 

[sephknite]

Ah, gotcha. Thanks for the advice and recommendation.

As for the one I linked from Amazon, would that work as well?

https://www.amazon.com/gp/product/B07FQR1BLG/ref=ox_sc_act_title_1?smid=A1QA3INZ86IJN9&psc=1

 

[Alaskan]

Ah, gotcha. Thanks for the advice and recommendation.

As for the one I linked from Amazon, would that work as well?

https://www.amazon.com/gp/product/B07FQR1BLG/ref=ox_sc_act_title_1?smid=A1QA3INZ86IJN9&psc=1

That looks like it should work fine without any modification. Just make sure you get the 27.2 seatpost from kinekt