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40Race Shoe FinderThe independent race lab

Nike Streakfly 2 v. adidas Adizero Takumi Sen 11

The 5K/10K specialists: a low nylon-plated feel shoe against a firm carbon scalpel.

The short answer

The Nike Streakfly 2 is 40g lighter (144g against 184g), the Nike Streakfly 2 is £15 cheaper at RRP (£165 against £180), and the Nike Streakfly 2 stays fast for roughly 50km longer (~300km against ~250km). Both are inside the World Athletics 40mm road limit.

Weight · men's US 9

Streakfly 2144g
Adizero Takumi Sen 11184g

0320g

Price · UK RRP

Streakfly 2£165
Adizero Takumi Sen 11£180

0£450

Competitive life · km before the foam fades

Streakfly 2300km
Adizero Takumi Sen 11250km

0700km

■ marks the better figure, where better is not a matter of taste

Both soles, one drawing3 units per mm · the line is the 40mm road limit
010203040505.0mm

Adizero Takumi Sen 1132mm — road legal

Streakfly 227mm — road legal

The tape

manufacturer-stated · ■ the better figure, where better is not a matter of taste
SpecificationStreakfly 2Adizero Takumi Sen 11
RRP£165 (advantage)£180
Weight144g (advantage)184g
Stack27 / 23mm32 / 25mm
Drop4mm7mm
Road legalyesyes
Platenyloncarbon fibre
FoamZoomXLightstrike Pro
Competitive life~300km (advantage)~250km
Price per km of life£0.55 (advantage)£0.72
Fitnarrownarrow
Underfootbalanceddemanding
Built for5K · 10K5K · 10K
Economy gain1.8–2.9%2.6–3.6%

Reading — both shoes, your race

= 4:24/km

Streakfly 2

Time bought back

−0:08 – 0:17

010 min

Projected finish
21:43– 21:52
Per second
£0.34
Per race
£4.12
Races in the foam
~40.0

Adizero Takumi Sen 11

Time bought back

−0:14 – 0:22

010 min

Projected finish
21:38– 21:46
Per second ■
£0.30
Per race
£5.40
Races in the foam
~33.3

Modelled economy gain adjusted for pace and your current shoes; ranges reflect the spread published between individual runners. Full method.

Which we would choose

RaceFor the timeFor the money
5Kat a reference 22:00Adizero Takumi Sen 11−14s to −22sAdizero Takumi Sen 11cheaper per second saved
10Kat a reference 45:00Adizero Takumi Sen 11−29s to −44sAdizero Takumi Sen 11cheaper per second saved

Reference times, trainer baseline, whole-life economics. Your own time changes the answer — use the reading above.

The case for each

Nike Streakfly 2

A proper short-distance racer for people who find full super shoes unwieldy at 5K pace. Lower, firmer, more connected to the ground.

■ Caution The nylon plate means noticeably less return than a carbon racer. You are buying feel and ground contact, not the biggest efficiency number.

Nike ↗
Full sheet

adidas Adizero Takumi Sen 11

A short-distance specialist with real carbon underneath. Firm, aggressive and brilliant for 5K and 10K where a marathon shoe feels like too much.

■ Caution Genuinely uncomfortable if you are not running fast. This shoe punishes anything slower than tempo pace.

adidas ↗
Full sheet

Straight answers

Which is lighter, the Nike Streakfly 2 or the adidas Adizero Takumi Sen 11?
The Nike Streakfly 2, at 144g against 184g — a difference of 40g per shoe (men's US 9).
Which is cheaper, the Nike Streakfly 2 or the adidas Adizero Takumi Sen 11?
The Nike Streakfly 2, at £165 UK RRP against £180 — £15 less. Street prices move, so check the retailer for the live figure.
Which lasts longer, the Nike Streakfly 2 or the adidas Adizero Takumi Sen 11?
The Nike Streakfly 2 — we estimate roughly 300km of competitive life against roughly 250km. That is the point at which the foam stops returning what you paid for, not the point at which the shoe falls apart.
Are the Nike Streakfly 2 and adidas Adizero Takumi Sen 11 legal for road racing?
Yes. Both measure inside the World Athletics 40mm road limit — the Streakfly 2 at 27mm and the Adizero Takumi Sen 11 at 32mm.

Manufacturer-stated specs unless marked estimated on the shoe sheet · last reviewed 2026-09-04 · prices are UK RRP.