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40Race Shoe FinderEst. 2023 · London

Head to head

New Balance FuelCell SC Elite v5vs
On Cloudboom Strike

FuelCell SC Elite v5

£135

Typical street price · £250 RRP

40mm — on the limit
Cloudboom Strike

£175

Typical street price · £270 RRP

39mm — road legal

Choose the FuelCell SC Elite v5 if…

  • You want the bigger return: 3.3–4.5% economy gain against 3–4.2%, and that gap widens the longer you are out there.
  • You want something more forgiving. This is the steadier platform — useful if your form goes late, or if you are on your feet longer.
  • You have a broad foot, or your toes spread as a long race goes on.
  • Money matters: it is selling around £135 against £175, and the time difference between them is smaller than the price difference suggests.
  • You would rather buy on measured numbers: this shoe's specs are manufacturer-confirmed, the Cloudboom Strike's are estimated.

Choose the Cloudboom Strike if…

  • You race off a strong, repeatable stride and want the more aggressive ride rather than the safer one.
  • You have a narrow foot and want to be locked in.

What does this
mean for you?

Every figure below is recalculated from your race and your current time. The gap between two shoes is not fixed — it grows with how long you are on your feet.

Over marathon from 3:45:00

Time back
FuelCell SC Elite v5: 172s–253sCloudboom Strike: 152s–233s
Cost per second saved
FuelCell SC Elite v5: £0.16Cloudboom Strike: £0.23

Ranges, not promises. Both figures are against a standard trainer, and the honest answer for most runners is that the difference between two shoes of this class is smaller than the difference a month of decent training makes.

Every number.

010203040504036
FuelCell SC Elite v5
010203040503933
Cloudboom Strike

What you pay

Street price
FuelCell SC Elite v5£135■
Cloudboom Strike£175

What the shoe is actually selling for across the shops we read, not its RRP.

RRP
FuelCell SC Elite v5£250
Cloudboom Strike£270

List price. Almost nobody pays it for a race shoe.

Cost per race
FuelCell SC Elite v5£34■
Cloudboom Strike£44

Street price divided by the races the foam stays fast for.

Cost per second saved
FuelCell SC Elite v5£0.16■
Cloudboom Strike£0.23

The whole-life question: what each second of race time costs you.

What it does

Estimated saving
FuelCell SC Elite v5172s–253s■
Cloudboom Strike152s–233s

Against a standard trainer, over the distance and time set above.

Economy gain
FuelCell SC Elite v53.3–4.5%■
Cloudboom Strike3–4.2%
Built for
FuelCell SC Elite v5Half · Marathon
Cloudboom StrikeHalf · Marathon
Best use case
FuelCell SC Elite v5The best super shoe for wide feet, and one of the most stable at full stack. A 4mm drop and a broad platform make it unusually forgiving late in a marathon.
Cloudboom StrikeA genuinely competitive marathon racer and the first On shoe that belongs in this conversation on merit.

How it is built

Weight
FuelCell SC Elite v5182 g■
Cloudboom Strike195 g

Manufacturer figure at men's US 9.

Stack (heel)
FuelCell SC Elite v540 mm
Cloudboom Strike39 mm
Stack (forefoot)
FuelCell SC Elite v536 mm
Cloudboom Strike33 mm
Drop
FuelCell SC Elite v54 mm
Cloudboom Strike6 mm
Foam
FuelCell SC Elite v5PEBA FuelCell
Cloudboom StrikeHelion HF
Plate
FuelCell SC Elite v5carbon fibre
Cloudboom Strikecarbon fibre

Rules and fit

Road legal
FuelCell SC Elite v5Yes (40 mm)
Cloudboom StrikeYes (39 mm)

World Athletics caps road racing shoes at 40 mm of stack.

Fit
FuelCell SC Elite v5wide
Cloudboom Strikenarrow
Stability
FuelCell SC Elite v5stable
Cloudboom Strikebalanced

Neither is better in the abstract — it depends on your stride.

Race life
FuelCell SC Elite v5~250 km
Cloudboom Strike~250 km

How long the foam stays fast, not how long the shoe survives.

Data confidence
FuelCell SC Elite v5verified■
Cloudboom Strikeestimated

■ marks the better figure where one is genuinely better. Fit, foam, drop and stability carry no mark — they depend on your foot and your stride, not on which shoe is superior.

In your size.

Where to buy

Your UK size

Best price today — some sizes£135at Runningbear — £115 under RRP

9 retailer checks failed on the last run, so their prices are missing rather than wrong.

Prices are captured when the site is built and stamped with the time of that check. We never rank a retailer by what it pays us; where a link earns a commission it is marked sponsored and the price you pay is unchanged.

Where to buy

Your UK size

Best price today — some sizes£175at Fitstuff — £95 under RRP

9 retailer checks failed on the last run, so their prices are missing rather than wrong.

Prices are captured when the site is built and stamped with the time of that check. We never rank a retailer by what it pays us; where a link earns a commission it is marked sponsored and the price you pay is unchanged.