By StripeFit Editorial TeamFirst published Updated
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Quick answer
Zoot Ultra Race 4.0 is a 2013 tri shoe; there is no confirmed current Zoot shoe successor
A 2013 Triathlete shoe guide categorized the Ultra Race 4.0 as tri-specific and described a BOA dial closure and smooth liner. Zoot’s current official triathlon collection does not document a successor shoe, so compare current tri and road models by transition setup, fit, and return terms instead of treating any one as a direct replacement.
What is known about the Ultra Race 4.0?
The available period source is a 2013 Triathlete article, not a current Zoot product sheet. It reports a snug upper, a liner that felt smooth to that article’s tester, and a BOA ratcheting closure. That historical account does not establish the fit or condition of an old pair. If you may run sockless, test the lining on short training runs; check that the BOA dial turns, tightens, releases, and stays secure before relying on it in a race.
Compare by race use, transition, and fit
| Your priority | Compare | What to check |
|---|---|---|
| Triathlon-specific model name | ASICS NOOSA TRI 16 | It is a different shoe and fit. Try your race socks or planned sockless setup and confirm the current width and size. |
| Faster training runs and pace changes | Saucony Endorphin Speed 5 | Saucony describes a nylon plate for fast-paced runs; the page linked is a wide version. It is not presented as a triathlon-specific shoe. |
| Adidas road-running option | Adizero Adios 9 | The current Adidas U.S. page lists Adios 9 models. Check the exact version, fit, and available size; the page does not make it a Zoot successor. |
| ASICS plated training or race option | MAGIC SPEED 5 | This is the current ASICS generation. Do not assume an older MAGIC SPEED 4 listing has the same construction or fit. |
| Short road-race shoe | Nike Streakfly 2 | Nike positions it for the mile to 10K and recommends a half size up on this product page; check its current size and return terms. |
Zoot Ultra Race 4.0
Consider old stock only if the seller identifies the exact Ultra Race 4.0, states whether the pair is new or used, and gives a return option you can use to check fit. Ask for clear photos of the sole, upper, product label, and BOA closure. Storage history and working hardware cannot be established from a title or one stock photo.
Try the pair indoors on a clean floor before running outside. If the seller cannot confirm the model or accept a return, choose a current shoe you can fit in person instead.
ASICS NOOSA TRI 16
Use this as the first current triathlon-branded shoe to compare if you want a present-day model rather than an old Ultra Race 4.0. ASICS lists the Noosa TRI 16 as neutral; check the displayed width and test your race setup before deciding.
Saucony Endorphin Speed 5
Compare this option if you want a shoe Saucony describes for pace work and faster training. Its official page describes a nylon plate and responsive PWRRUN PB cushioning; that description does not establish your fit or make it a tri-specific transition shoe.
See Saucony Endorphin Speed 5 details
Check the size 11 Amazon option · Check the size 11.5 Amazon option. Confirm the selected size and color before checkout.
Adidas Adizero Adios 9
Keep this as a separate Adidas road-shoe comparison if the older Zoot fit is not essential. The current Adidas U.S. page displays Adios 9 models; confirm the exact size, version, and return option with the seller.
ASICS MAGIC SPEED 5 and prior-generation MAGIC SPEED 4
Start with the current MAGIC SPEED 5 product information. MAGIC SPEED 4 is a previous version; consider it only if the seller identifies v4 exactly and the price, condition, size, and return terms make sense.
Nike Streakfly 2 and the original Nike Streakfly
Nike’s current Streakfly 2 page calls it a road-racing shoe for the mile to 10K and recommends going up half a size. The retailer option below is the original Streakfly, a different generation from Streakfly 2. Confirm the generation and return terms before buying that older version.
Who should choose or skip old Zoot stock?
- Choose the old Ultra Race 4.0 only if the seller can verify the model and hardware, your race setup works with the fit, and you have a return window.
- Choose a current model if you need an identifiable size and return policy before race day. Do a short training run in the same socks or sockless setup you plan to use.
- Skip an old pair with unclear storage, closure condition, or return terms. Do not make it your first run or race-day pair.
For context on other separate older Zoot models, see our Zoot Ultra TT 7.0 guide, Zoot Ultra Tempo 6.0 guide, and Zoot Laguna guide. Our Saucony Kinvara 4 guide covers a different older shoe; none of those pages establishes a current Ultra Race successor.
Sources and methodology
- Triathlete’s 2013 Running Shoe Guide identifies the Ultra Race 4.0 as tri-specific and reports what that article’s tester noted about the BOA closure and liner. It is an old editorial test, not a present-day condition, fit, or availability check.
- Zoot’s current official triathlon collection reviewed here presents triathlon apparel and does not document a successor shoe. That page alone does not establish what every retailer may carry.
- ASICS NOOSA TRI 16 product page identifies a current model and its stated use and sizing. It does not establish a fit match with the Zoot shoe or confirm a sockless transition setup.
- Saucony Endorphin Speed 5 product page describes the wide version’s intended faster-run use and construction. It is not a triathlon-specific recommendation, and the linked page does not set Amazon seller terms.
- Adidas Adizero Adios U.S. page currently displays Adios 9 models. Current brand-page availability can change and does not verify an older retailer listing’s generation.
- ASICS MAGIC SPEED 5 product page confirms the current numbered version and describes its current construction. It does not establish that a MAGIC SPEED 4 listing has those details.
- Nike Streakfly 2 product page describes a road-racing model and gives a fit recommendation for that version. The retailer link above identifies the original Streakfly; its generation differs from Streakfly 2.
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