Basso unveils the Diamante SV

New aero design for the flagship bike

Basso is celebrating its 40th year with the launch of a new aero-iteration of its flagship Diamante. The new SV model (that’s Super-Veloce) is based around an all-new 820g carbon frame, which aims to combine an aero advantage and retain the low weight of the Diamante. It will have a tuneable fit and a patented seat mast clamping system that combines a secure fit with rubber/elastomer section to aid comfort.

Handmade Italian carbon is a rare thing, but Basso is one of the few that build its carbon frames by hand in Dueville Italy. The family owned company in fact has three carbon facilities.

The SV’s slickly integrated ‘Blade’ front blends the fork and proprietary stem into the head tube, and it's here where the SV’s fit can be tuned

Head of Sales Alessandro Basso explains “We produce our own carbon frames and produce high-grade carbon products for many others including Ducati’s Moto GP team [the carbon rear swing-arm is produced by Basso] and parts for Formula 1 teams [Toro Rosso, Force India] and more recently for the new Hyundai WRC car [the super-lightweight carbon seats].

“All of our carbon frames are full carbon so we don’t use metal inserts in the dropouts, BB shell, or head tube. We can completely control the use of carbon and build in strength where it’s needed, but being full carbon it’s significantly lighter than most.”

Up front the SV can be tuned to fit using the included 'comfort kit'
Up front the SV can be tuned to fit using the included 'comfort kit'

The SV’s slickly integrated ‘Blade’ front blends the fork and proprietary stem into the head tube, and it's here where the SV’s fit can be tuned. Included with the frame kit (€4,400) is the ‘Comfort kit’, which consists of three options on stack height: for those looking for a slammed race look you can mount the stem directly onto the top headset bearing sans spacers; or go to intermediate with a +20mm spacer that’s aero-shaped to retain the smooth look; and for those looking to go taller 25mm can be added to the stack height by combining the aero-spacer and secondary spacers too.

Basso explains: "We wanted to give people the option to get the fit for them just right, but we also didn’t want to have the handling compromised when going taller, so we designed the spacer system to sit underneath the top headset bearing so the front end rigidity stays the same no matter which way you decide to run the bike."

The 3B clamp system is patented…
The 3B clamp system is patented…

At the back, the SV has a new patented clamping system ‘3B’ in which the proprietary aero seat mast, with a ‘U’ shaped cross section, is clamped by a three-point bolt system. The seat mast also sits inside a 100mm long rubber/elastomer sock, which acts as a vibration damper and allows a little free movement for-and-aft, again to aid comfort.

The SV is available as both a frame kit (including stem, seat mast, comfort kit, and headset) at €4,400 and a range of top-level equipped bikes with a choice of Campagnolo (Super Record EPS, Super Record, and Chorus) or Shimano (Dura-Ace, Ultegra Di2, Ultegra). Basso also said that a SRAM eTap version would become available with custom hole blanking pieces, which make the SV look smooth and clean.

Basso also constructs its own wheels, with carbon rims built in its own facility and high-grade carbon Miche hubs for a lightweight 1,100g all up weight
Basso also constructs its own wheels, with carbon rims built in its own facility and high-grade carbon Miche hubs for a lightweight 1,100g all up weight

Complete bike weights are impressive for an aero bike, with the Campag Super Record bike coming in at just 6.5kg including Basso’s own (manufactured in Italy) carbon Microtech M150 tubular wheels — which weigh in at an impressive 1,100g a pair, with a 120kg rider weight limit.

Alongside the SV there have been updates to the Diamante, which Basso describes as the company's climbing special. The Diamante frame tips the scales at a scant 760g, and for 2017 it's now available in a limited edition paint finish called ‘Eggshell’. The soft tone finish does indeed feel like an eggshell and Basso is rightfully proud of the result, "Not only does the finish look fantastic, it has a real benefit in that it's incredibly tough and hugely resistant to scratching or chipping, so the frame will continue to look like new for years."

The Astra disc has switched to front and rear thru-axles for 2017
The Astra disc has switched to front and rear thru-axles for 2017

Disc’s are coming

Basso also explained that disc versions of both the Diamantes are in the works and for 2017 there’s a new version of the Astra disc, which switches to front and rear thru-axles for the first time — along with the slick looking Fast Cross cyclocross bike.

Warren Rossiter

Senior Technical Editor
Approaching two decades of testing bikes, Warren can be found on a daily basis riding and exploring the road and off roads of Wiltshire's Salisbury Plain in the UK. That's when he's not travelling the world to test the latest kit, components and bikes.
  • Discipline: Road
  • Preferred Terrain: Big, fast descents and rough surfaces like cobbles or strada bianca
  • Current Bikes: Decade Tripster ATR, Dedacciai Temarario, Cannondale Synapse, BMC Granfondo Disc Di2, Genesis Day One CX, Parlee Z Zero Custom, Storck Scenario Comp Custom, DMR Trailstar, Bianchi Pista, Cube SUV 29er e-bike
  • Dream Bike: Bianchi Oltre Disc, Bianchi Specialissima, Cannondale Slate, Buffalo Bike
  • Beer of Choice: Brew Dog Punk IPA
  • Location: Wiltshire, UK

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