Issue #040 Review

SPANK Vibrocore Spike 35 bars in review


It’s easy to become a little sceptical of ‘new’ and innovative technologies, especially ones that claim to have properties that are difficult to quantify. Inside SPANK’s Spike 35 bar is where the real magic (or is it?) happens, with a Vibrocore foam filling that claims to absorb vibrations and minimise arm pump and hand numbness.

SPANK Vibrocore Spike 35 bars 01211A1987 810x540

Targeted at the heavy duty user, SPANK’s Spike 35 bar is a whopping 820 mm wide with a 35 mm clamp diameter and 25 mm rise. The 5° up- and 8° back sweep feels immediately familiar and should suit most riders. Made from Zirconium 7-series alloy, the bar weighs in at 312 g and has etched cut marks down to 760 mm. Using Vibrocore inside the bar is claimed to improve strength, allowing SPANK to use thinner tubing on their bars without compromising fatigue life and durability. Vibrocore is a proprietary, biodegradable foam adding around 25 g to each bar. The foam is lab tested and proven to reduce the short term effects of hand pump. But how does it shape up on the trails?

SPANK Vibrocore Spike 35 bars 02211A1990 600x400
Nice sweep and rise
At 820 mm wide with a 35 mm clamping diameter and 25 mm rise, 5° up and 8° back sweep the handlebar feels comfortable and familiar.
SPANK Vibrocore Spike 35 bars 03211A1993 600x400
Secrets inside
The SPANK Spike 35 Vibrocore bar is filled with vibration absorbing foam, allowing thinner, more compliant tubing to be used.
SPANK Vibrocore Spike 35 bars 01D75T0389 810x540
35 mm compliance
Even with the bigger 35 mm clamp diameter, the SPANK Spike 35 Vibrocore bars offer a smooth and compliant ride.

Whether it’s the result of the Vibrocore foam or the thinner walls used in the tubing, in back-to-back tests with other 35 mm carbon bars and leading aluminium bars like the Renthal Fatbar we were highly impressed. The SPANK Spike 35 bar feels direct with no unwanted flex at the grips, but we did perceive fewer vibrations coming through the bar. It’s a bold claim for us to make and without scientific data it’s hard to avoid the placebo effect, but we do think there is something to the Vibrocore filling. The high-frequency vibrations feel less pronounced, and the front end feels quieter and more composed. Impressive indeed. Several bars on the market offer a nicely damped ride, but the SPANK Vibrocore is one of the best while remaining affordable too.

The combination of Vibrocore and thinner sidewalls do add an observable dose of compliance and damping to the SPANK Spike 35 bar. Standing in stark contrast to other super stiff 35 mm bars on the market, anyone looking to minimise arm pump should check the SPANK Spike out.

Tops

  • noticeably damped feeling
  • nice rise and back sweep
  • affordable

Flops

  • Vibrocore does add weight

Tester Trev
Duration 3 months
Price € 112
Weight: 312 g
More info spank-ind.com


This article is from ENDURO issue #040

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ENDURO Mountainbike Magazine

ENDURO is the leading magazine for mountain bike technology and the modern trail riding lifestyle. We cover high-end bikes, global trends, and technical innovations – in-depth, bold, and always with an eye on the bigger picture. Our editorial approach speaks to everyone who sees mountain biking not just as a sport, but as a way of life. We view bikes as more than just the sum of their parts, evaluating products through the lens of real world riding rather than just on the spec sheet, testing bikes everywhere from alpine adventures to intense bikepark laps.

Since 2011, ENDURO has stood for journalistic quality and transparent reporting in the MTB segment. In our in-depth individual and comparison reviews, our specialist test team brings years of on-trail experience from around the world to deliver well-founded verdicts and real guidance for riders. Our awards are internationally recognized as a benchmark for innovation and quality in the bike industry, offering reliable orientation for readers, retailers, and manufacturers alike.

ENDURO is published in both German and English, reaching an international audience.