BH – QUARTZ DISC 105

$2,799.00 $2,299.00

SETS THE STANDARD FOR VERTICAL COMPLIANCE AND LATERAL RIGIDITY.
An endurance design blended with aerodynamics makes a Quartz the ideal bicycle 
for a wide range of cyclists.

Description

PRODUCT INFO

The reactive, aerodynamic frame, and great performance and stability provides efficiency to a wide range of cyclists. Vertical compliance is optimal, its BB386 EVO bottom bracket, the slightly taller tapered head tube, flat mount brakes and the ability to integrate the Di2 battery into the seat post make the Quartz an eminently capable ride ideal for devouring miles of gravel or crushing all comers at Wednesday Night Worlds.

100% CARBON. STANDARD FLAT MOUNT SYSTEM

With the design and development of the Quartz line, BH has created a lightweight yet responsive top-performing frame which stands second none in its category. The Quartz frame is a full carbon HCIM (Hollow Core Internal Molded) design developed using a highly specific carbon layup and molding technique. This innovative technology allows for greater control and optimization of the material thicknesses throughout the frame design. A specific blend of high modulus carbon fiber was selected specifically to meet the performance targets set by the BH development team, which resulted in a spectacular aerodynamic design that is lightweight and offers optimal vertical compliancy. The Quartz Disc frame incorporates the new Shimano Flat Mount standard providing lightweight, aerodynamic and built-in integration in the frame without the need of adaptors.

AERODYNAMIC FORK AND ASYMMETRIC REAR TRIANGLE

The Quartz fork, like that of the G6, is manufactured using a unique carbon design which fits the headset like a glove. The result is a smooth transition between frame and fork in both looks and performance. The rear chainstay design is asymmetrical, as in the other BH top of the line frames, in order to increase the lateral stiffness of the frame and to allow installation of wider wheel designs.

LATERAL AND VERTICAL RIGIDITY

The BB386 EVO bottom bracket, an innovation co-developed by BH in collaboration with FSA, incorporates an overall bottom bracket width of 86.5 mm. This optimized bottom bracket design allows the frame builder to increases overall frame stiffness while increasing rear tire clearance required of wider wheel designs. Using this system, BH has increase the torsion stiffness in the bottom bracket of the Quartz resulting in increased rider efficiency. The result is improved lateral stiffness, greater stability and increased control with each turn of the pedals.

SEMI-SLOPING GEOMETRY WITH 406 MM CHAINSTAYS

The design of the frame is slightly sloped to guarantee greater rider ergonomics. This semi-sloping geometry places the gravity center lower and along with 406mm chainstays guarantees efficiency and more stability for the rider.

27.2 MM SEAT POST

The Quartz seat post is 27.2 mm in diameter, similar to that used on the Ultralight model. This design offers additional weight savings to the overall frame while adding greater vertical compliancy.

SPECIFICATIONS

FRAME: Quartz Disc Carbon

COLOR: Black / Blue / Orange

WEIGHT: 18.66lbs

FORK: Quartz Disc Carbon Tapered

HEADSET: FSA No.42 1.125-1.5″

SHIFT LEVERS: Shimano 105

REAR DERAILLEUR: Shimano 105

FRONT DERAILLEUR: Shimano 105 braze-on

CRANK SET: Shimano 105 50/34T (170mm/S; 172.5mm/M, L; 175mm/XL,XXL)

BB SET: FSA 386EVO

CASSETTE: Shimano 105 11-28T

CHAIN: KMCX11L

FRONT BRAKE: Shimano RS505 hydraulic flat mount w/140mm rotor

REAR BRAKE: Shimano RS505 hydraulic flat mount w/140mm rotor

WHEELSET: Mavic Aksium Disc

TIRES: Vittoria Zaffiro 700×25

RIMS: Alloy

HUBS: Alloy hub shell w/steel axles, sealed cartridge bearings and FTS-L steel freehub

SPOKES: Steel bladed straight pull; radial lace front/2-cross drive side, radial non-drive rear

SADDLE: Prologo Kappa w/Satian rails

SEAT CLAMP: BH 31.8 alloy

SEAT POST: BH S Lite carbon shaft w/alloy head 31.6 (350mm/XS, S, M; 400mm/L, XL, XXL)

HANDLEBAR: Easton ECA30 (40cm/XS,S; 42cm/M, L; 44cm/XL, XXL)

GRIPS: BH Cork Tape

 

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