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New Rose Pro SL, Bontrager’s cheapest WaveCel MTB helmet and one weird inner tube

Plus Portland Design Works' beautiful fenders

First Look Friday

As the UK lockdown gradually eases and seemingly every bike in the UK is sold out, the flood of new product announcements has continued unabated.


DT Swiss launched same tasty carbon mountain bike wheels as well as some more affordable alloy ones, RockShox debuted its burly ZEB fork, and Garmin showed us its latest smartwatches.

Meanwhile, Bosch presented its ebike of the future and we did a deep dive on hookless rims, picking through the mess that road tubeless currently finds itself in.

Plus, BikeRadar tech writer Simon Bromley gave us the lowdown on his 2021 Giant TCR long-termer and we told you the things we wish we’d known when we first got into cycling.

Read on for this week’s bike and kit highlights.

Rose Pro SL Disc 105

German direct-sales brand Rose has made some of our favourite affordable bikes over the years. 

The previous generation Pro SL was one of our top picks in both rim and disc brake variants, a key rival for Canyon’s Endurace

Rose has updated the Pro SL for 2020 with a new fork, cleaner cable routing, a super-slick integrated seat clamp and new build specs. 

The frame retains the carbon-like aesthetics of its predecessor, with nicely tidied welds and an eye-catching paintjob. 

The new Pro SL is still available in both rim and disc models, with a choice of Shimano 105 or Ultegra builds. 

With a full 105 R7020 hydraulic groupset, DT Swiss P1850 Spline 23 wheels and Ritchey finishing kit, this 55cm Pro SL Disc weighs 9.4kg on our scales.

Bontrager Rally WaveCel MTB helmet

Bontrager debuted its new WaveCel safety tech last year to much fanfare, claiming a major advance from conventional helmet design. 

WaveCel is a cellular structure that surrounds the wearer’s head. It’s designed to “flex, crumple and glide” as the structure collapses in the event of an impact, dissipating energy more effectively than basic EPS foam. 

WaveCel was initially offered only in top-end Bontrager helmets, but the tech has now trickled down to the mid-level, with the Rally WaveCel costing £70 / $150 less than the top-end Blaze WaveCel.

The Rally WaveCel is a trail mountain bike helmet that offers a decent amount of coverage. It features an adjustable visor and there’s a Boa dial at the back of the cradle to adjust the size. 

The new Rally has achieved a 5-star rating in Virginia Tech’s helmet testing, although interestingly it actually scored very slightly worse than the MIPS version of the same lid. Make of that what you will – Bontrager is evangelical about WaveCel, but riders have the choice of their preferred technology. 

Like other Bontrager helmets, the Rally comes with free crash replacement in the first year of ownership. 

The helmet is available in four colours and three sizes. This size large weighs 430g on our scales, bang on its claimed weight.

  • £129.99 / $149.99

Portland Design Works Full Metal Fenders