Tannus airless tires

EMGX

Well-Known Member
I just mounted a 26x1.75 Tannus Razorblade airless tire on a geared rear hub motor rim. It was much more difficult than the videos showing mounting of narrow 700c versions. Here is a video that I found that was more realistic for the tire that I mounted.
Looking forward to riding this bike without concerns about getting a flat tire. Patching or changing a tube on a mid drive is easy, same as a regular non ebike but much more difficult with a heavy geared rear hub wheel with no QR or thru axle and a torque arm etc to deal with.
 

kmccune

Well-Known Member
I was so disgusted with a Raliegh I was trying to convert to an ebike,I gave it away I had installed a wheelset that had a 3 spd IGH and a dynamo on the front hub, not to mention it already had solid tires on the rims, what was I thinking?( not the last stupid thing I have done on this Journey) Next stupid thing will be donating "Milano" to a fundraiser( maybe thats a good thing)
 

6zfshdb

Well-Known Member
Region
USA
City
Northeast Pennsylvania
Definitely an interesting product but I have some concerns with the type of off road riding I do.

They are not available in 26 x 2.25 yet. Considering the mounting difficulty with the 26 x 1.75, larger sizes may be next to impossible.
I'm concerned the tread may not be suitable for gravel.
Durability may also be a concern. At 5000 miles, I would need to replace them every season. Not something I would look forward to doing once a year.
So far, I haven't had any flats with my Tannus inserts. I'm not sure the fairly small added protection offered by their airless product would be worth the mounting hassle.

Thanks for posting though, I'm also interested in your review.
 

tomjasz

Well-Known Member
They are not available in 26 x 2.25 yet.
I killer for me.

At 5000 miles, I would need to replace them every season.
I’d be ok with that mileage but the width ends it for me. I wear down rear tires on Townie style frames well under 5000 miles. I’d try a set on my bike path frame and BBS01B. I’m thinking the liner would be good for my new trike build front drive wheel. Mid drives spoiled me with the ease of tire replacement.
 

6zfshdb

Well-Known Member
Region
USA
City
Northeast Pennsylvania
I killer for me.


I’d be ok with that mileage but the width ends it for me. I wear down rear tires on Townie style frames well under 5000 miles. I’d try a set on my bike path frame and BBS01B. I’m thinking the liner would be good for my new trike build front drive wheel. Mid drives spoiled me with the ease of tire replacement.

Yeah, my next build will likely be a mid drive for the ease of tire work.

I get about 5000 miles on my Schwalbe Marathon's but they're fairly easy to change with the Tannus inserts. The Tannus airless would need to get 7 or 8K before it would be worth the extra mounting hassle.
 

6zfshdb

Well-Known Member
Region
USA
City
Northeast Pennsylvania
OT
i see that Grin now has a tariff disclaimer. My motor came without a tariff. It seems that it’s a hit or miss proposition. Nearly a coin toss as to whether we’ll be dinged.
That may have been a result of my complaint to Grin. It really Pi**es me off when you order something from them and don't know what it's really going to cost.
 

fooferdoggie

Well-Known Member
Yeah, my next build will likely be a mid drive for the ease of tire work.

I get about 5000 miles on my Schwalbe Marathon's but they're fairly easy to change with the Tannus inserts. The Tannus airless would need to get 7 or 8K before it would be worth the extra mounting hassle.
that must be a extreme harsh ride the marathons are harsh enough. haver o gotten flats with them that you needed the inserts to? I only get one per two flats a year on them.
 

6zfshdb

Well-Known Member
Region
USA
City
Northeast Pennsylvania
that must be a extreme harsh ride the marathons are harsh enough. haver o gotten flats with them that you needed the inserts to? I only get one per two flats a year on them.
The ride isn't bad if I reduce the pressure to between 30 & 40 psi. It feels like a solid rubber tire at pressures much above that.
 

EMGX

Well-Known Member
Definitely an interesting product but I have some concerns with the type of off road riding I do.

They are not available in 26 x 2.25 yet. Considering the mounting difficulty with the 26 x 1.75, larger sizes may be next to impossible.
I'm concerned the tread may not be suitable for gravel.
Durability may also be a concern. At 5000 miles, I would need to replace them every season. Not something I would look forward to doing once a year.
So far, I haven't had any flats with my Tannus inserts. I'm not sure the fairly small added protection offered by their airless product would be worth the mounting hassle.

Thanks for posting though, I'm also interested in your review.
I have 1.75 on the front of this bike already, the Tannus replaced a 2.00 on the rear.
The tire came with a couple disclaimers that I didn't see on their web site that sound like CYA disclaimers and other lawyer boilerplate
- this product is recommended for paved road use only ... please refrain from use on gravel or grass, as this may not provide sufficient traction
- the Tannus Airless Tire has a structural weight limit of 165lbs...This means that the combined weight of the bicycle and the rider, including all accessories and equipment, may not exceed 330lbs
- they mention a 60 mile break in period. The tire feels somewhat slick, maybe from moulding release agents that should wear off - FWIW motorcycle tires need break in also
- one of the two package inserts states that the warranty is 5000 KM OR 2 years, whichever comes first, another insert states warranty is 5000 miles

None of this would have stopped me from purchasing but it seems to me that the disclaimers should be prominently posted on the web site product description.
By the way, I've installed several difficult motorcycle tires and of course some bike tires are more difficult than others but this Tannus airless tire rivals the most difficult motorcycle tire that I've installed. The video I linked seems to be from a bike store and at the end he states he isn't sure that he would sell the product. Depending on my experience with this tire I would consider it on other bikes and expect that thinner, larger diameter tires would be much easier to mount on a rim - as seen on other videos with 700c tires.

I have Tannus Armour in Schwalbe G one 700x40c tires on my gravel bike. I've had a couple flats with the insert but several flats without them. For this bike I wanted a tire with no chance for flats on the rear hub motor wheel.
 

EMGX

Well-Known Member
Small update on the Tannus airless tire. It is on a bike that I almost never ride but decided to give it another go. The 26x1.75 Tannus tire measures only 1.5 inches in total width, slightly narrower than Schwalbe Marathon 26x1.5 tires that I have on another bike. Continental Ride Tour 26x1.75 measure slightly wider than 1.75". IMO Tannus needs to be more accurate and forthright in its product descriptions. That said, I'm still happy to have a no flat tire on this geared rear hub bike that I never want to have to fix a flat by the side of a road.