Specialized Crux E5 review

Swapping daily versatility for dirty velocity

Our rating 
4.0 out of 5 star rating 4.0
GBP £1,200.00 RRP | USD $1,600.00

Our review

Impressive, fast yet forgiving speed whether you're on road or off – but performance trumps everyday practicality features
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While some brands dilute their cross bikes into do it all utility machines, Specialized has so many versatile options like the new Diverge and AWOL machines they can concentrate on the Crux of cyclocross performance.


The performance intent of even this E5 base model (there are five Crux series bikes) is obvious straight away from the absence of practical features such as ‘guard or rack mounts and there’s more proof as soon as you push the pedals. Having been really impressed with the alloy frame of the new Specialized Allez road bike we shouldn’t have been surprised how good the Crux felt, but it still shone brighter than expected.

The tapered carbon fork and smoothly tapered and butted E5 Premium alloy frame transfer precise handling geometry and power onto the ground with a real ‘have a go hero’ race vibe, whether you’re actually fighting round a ticker tape corner, or chasing squirrels through the woods. It’s a big credit to Specialized’s engineers that they do it without numbing your hands or battering your backside if you’re pushing the limits of what a cyclocross bike should be expected to do. The fat, lightly knobbled tyres provide cushioning and grip regardless of whether it’s frost cratered Tarmac, the local towpath/bikepath or a soggy school field of a local ‘cross race underneath them.

Gel bar tape assists both comfort and confidence; a stainless steel stem bolt is a nice foul-weather touch:
Russell Burton / BikeRadar

Gel bar tape assists both comfort and confidence; a stainless steel stem bolt is a nice foul-weather touch

Despite the reinforced chassis and disc brakes, switching to skinny road boots will drop weight to that of a ‘proper’ road bike for longer faster commutes, training rides or sportives. The Tracer Sport rubber rolls well enough once you’re up to speed though, and suits the overall character of the bike. It’s a very purposeful character – that’s reinforced wherever you interact with the Crux – too.

The clever opposing pad movement, stirrup actuated Tektro Spyre brakes are powerfully weather ignorant. Gel bar tape reduces vibration and gives a chunky feel to the already stout, confident handling and the FSA cranks benefit from a BB30 bottom bracket and oversized frame shell to bolster stiffness.

The crux e5’s lively, precise alloy frame will reward updating over time:
Russell Burton

The Crux E5’s lively, precise alloy frame will reward updating over time

Clean internal cable routing and wide ranging gears are all practical advantages that work wherever you take the Crux and it’s great to see details like a reusable split chain link and stainless steel stem bolts on a bike that’s likely to see a lot of mucky race missions and frequent post ride cleaning.

From experience side exit gear cables on the Sora STI shifters run smoother for longer than more expensive shifters that force cables through tight loops to sneak under bar tape. It’s a frame well worth upgrading over time if you get the CX or gravel race or random rough stuffing bug.


This particular model is not available in Australia, however the Crux Sport E5 is available for AU$2,299 and the Crux E5 Disc frameset is AU$999.

Product Specifications


Name Crux E5 (15)
Brand Specialized

Brakes Tektro Spyre mechanical disc
Cranks FSA Gossamer BB30 46/36T chainset Shimano Sora 11-28T 18 speed gears
Fork Specialized FACT carbon
Frame Material Specialized E5 premium alloy
Front Tyre Specialized Axis Classic disc
Handlebar Specialized Comp
Rear Tyre Specialized Axis Classic disc
Saddle Body Geometry Toupe Sport
Seatpost Sport
Stem Specialized Comp
Weight (kg) 10.3
Wheelset Specialized Axis Classic disc
Year 2015
Frame size tested 56cm