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Maxxis Aspen ST 29x2.25" MaxxSpeed ONE70 EXO tire, TR, kevlar

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RRP 85.99 
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Delivery method on Tuesday 15.09.2026
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Maxxis Aspen ST 29x2.25" MaxxSpeed ​​ONE70 EXO tire

The Aspen ST has been out of the official Maxxis catalogue for several seasons now. This is a model specific for XC racing, with a low-profile pattern that only the fastest racers in the world had access to. Nino Schurter himself participated in the development. His handwriting can also be found in the MaxxSpeed ​​compound, whose priority is the highest possible speed.
Product features
MaxxSpeed - a new mixture containing silicon dioxide, reduces rolling resistance by more than 25 % and increases grip
TR - Designed for tubeless systems
EXO - Additional material for side walls, resistant to cutting
ONE70 - special, durable shell braid with 170 TPI
Product details
Colour black
Tubeless Yes
Material kevlar
Wheel diameter 29"
Tire width 2.25"
Tire specification cross-country (XC)
Recommended rim width 30 mm
ETRTO 58-622
Cord 170 TPI
Pressure max. 50 PSI
Weight 560 - 660 g info
product ID 278437
Values ​​occurring with tires
PSI - indicates the pressure to which the manufacturer recommends inflating the tire. 1 atmosphere = 14.7 PSI
TPI (EPI) - the density of the shell's skeleton fibres. The higher the TPI value, the more flexible and flexible the tire will be.
Kevlar tire - foot made of Kevlar fibres. The cover can be folded, so it is more practical when moving or storing. It is characterized by a lower weight compared to wire casings and a higher resistance to puncture.
Wire tire- bead made of wire. The shell is inflexible, it is heavier than the Kevlar one.
Size chart ETRTO Dimension in inches
29" 50-622 29 x 2.00
    28 x 2.00
  54-622 29 x 2.10
    28 x 2.10
  55-622 29 x 2.15
    28 x 2.15
  57-622 29 x 2.25
  60-622 29 x 2.35
    28 x 2.35
  75-622 29 x 3.00
Tire and rim compatibility overview
Tire width in mm Wheel rim in mm                
  13C 15C 17C 19C 21C 23C 25C 27C 29C
18                  X                
20                  X                
23                  X                  X              
25                  X                  X                  X            
28                    X                  X                   X          
32                    X                  X                   X          
35                      X                   X                    X        
37                      X                   X                    X                    X      
40                      X                   X                    X                    X      
42                      X                   X                    X                    X                    X    
44                      X                   X                    X                    X                    X    
47                      X                   X                    X                    X                    X                      X  
50                      X                   X                    X                    X                    X                      X  
52                      X                   X                    X                    X                    X                      X                     X
54                         X                    X                    X                    X                      X                     X
57                         X                    X                    X                    X                      X                     X
60                         X                    X                    X                    X                      X                     X
62                         X                    X                    X                   X                      X                     X
Product rating  (18 ratings)
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I was a little afraid to put this tire on a bike because of the braking distance, but I did it anyway and put it on the rear wheel and I have to say that it is good. The braking distance is really longer, but you can ride with it and adapt to it. I accelerated on the time trials. On moderate smooth climbs, you can feel that the rolling resistance is lower. I have never had it in the wet. The pattern is interesting and completely different from other tires. The tire feels sticky to me. And I wouldn't ride it too much on the road and sidewalks so that it doesn't wear out quickly.

Trochu som sa bál hodiť tento plášť na bajk kvoli tej brzdnej dráhe ale aj tak som to spravil a dal som ho na zadné koleso a musím povedať že je to good. Brzdna dráha je fakt dlhšia ale s tým sa dá jazdiť a prispôsobiť sa tomu. Ja som na časoch zrýchlil. Pri miernych hladkych stúpaniach je to cítiť že valivý odpor je nižší. V mokre som ho ešte nemal. Vzor je zaujimavý a úplne iný ako odlišné pneu. Pneumatika mi príde lepivá. A nejazdil by som ju moc po ceste a chodníkoch aby sa rýchlo nezjazdila.

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Fast tire. Despite the low tread, very decent grip. Slightly lower durability, 7 punctures after two months, but no problems, the milk works. So you don't have to worry, I ride about 6 days a week. I definitely recommend it and will buy it again. Of course, I ride it in the back

Rýchly plášť. Napriek nízkemu dezenu veľmi slušný grip. Trošku nižšia odolnosť, po dvoch mesiacoch 7 defektov, ale bez problémov, mlieko funguje. Aby ste sa nebáli, tak jazdím cca 6 dní v týždni. Rozhodne doporučujem a kúpim znova. Jazdím ho samozrejme vzadu

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Bought for a girlfriend for a bike. I was surprised how such a not very active cyclist knew the difference. She originally drove a maxxis icon and when she switched to these tyres, she appreciated the stability, controllability and overall feeling more confident while driving. Maximum satisfaction.

Kupované přítelkyni na kolo. Byl jsem překvapený jak taková ne moc aktivní cyklistka poznala rozdíl. Původně vozila maxxis ikon a přechod na tyhle pláště sama ocenila ze stabilita ovladatelnost a celkově se cítí víc jistější za jízdy. Maximální spokojenost.

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Perfect fast tire. Definitely more for dry conditions but I could trust it even on wet grass, albeit at lower pressure, but cornering and braking were fine.

Perfektný rýchly plášť. Určite viac do suchých podmienok ale mohol som mu veriť už aj na mokrej tráve síce na nižšom tlaku ale zákruty aj brzdy v pohode.

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Super fast XC tire, very good grip in the dry, not ridden in the wet, so I don't know. ?

Super rychly XC plast, za sucha s velmi dobrou prilnavostou, za mokra nejazdeny, tak neviem. 🙂

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SL zelo hitra guma, sober oprijem na suhem na mokrem malo slabši

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It's the cold season...we're waiting for the warmth to put them to work

Este sezonul rece....asteptam caldura sa le punem la treaba

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SK Výborné na cestu aj do ľahkého terénu.

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Excellent rolling with low weight.

Kiváló gördülés alacsony súly mellett.

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Mounted on the rear wheel, rychlyXC

Nahodený na zadné koleso, rychlyXC

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SK Veľmi veľmi rýchly plast

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CS Super rychlí plášť, rychlejší jsem snad jezdil jen na silničce.
Ale v terénu se hodí pro zkušenější jezdce, chce pevnou ruku,
Do bláta velmi opatrně. Mám obuto na pevňáku na předek i zadek.

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SK plast je vyborne rychly na cestach aj v lese ale dan za to je velmi rychle opotrebenie plasta. Plast vydrzi realne par mesiacov so stastim jednu sezonu

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Maxxis is a global leader that has defined the world's top in bicycle tires since 1967. The orange logo is a symbol of uncompromising performance in MTB, road cycling and gravel. The brand excels in technologies such as grippy 3C compounds, EXO protection and tubeless TR systems. Models such as the Minion DHF, Assegai and Ikon are legendary for their traction and durability. Maxxis is the choice of professionals and amateurs who demand maximum control and reliability on any terrain. It is, in short, quality that will support you in every turn.

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