Brompton C Line Explore Black - High vs Polygon Helios A7

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• Brompton C Line Explore Black - High vs Polygon Helios A7

Compare Specifications of Brompton C Line Explore Black - High and Polygon Helios A7

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Polygon Helios A7 Brand: -- Select Brand -- / Model: -- Select Model --

Brand: -- Select Brand -- Model: -- Select Model --

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Technical Specifications

Drivetrain	Brompton Wide-range 6 speed drivetrain (2 x 3 speed), 302% range	--
Frame	Main Frame : Precision drawn heat-treated steel tubing with hand brazing and selected auto-brazed joints Rear Frame : Hand brazed cold-formed micro-alloy steel tubing	ACX Performance UCI Approved
Stem	--	FSA NS SMR, EXT: 90mm (XS, S) / 100mm (M, L) / 110mm (XL), BB: 31.8mm, R/D: 6degree
Handle Bar	High Handlebars – Brompton triple butted 6061 aluminium handlebar with shot-peened finish	FSA Energy Compact, W: 400mm (XS, S) / 420mm (M, L) / 440mm (XL), BB: 31.8mm, R/D: 123.2mm, B/R
Fork	Steel brazed fork	ACX Performance UCI Approved, Taper 1-1/8" TO 1-1/2"
Seatpost	Brompton standard length Chromoly steel tube. Suitable for maximum inside leg 33″/84cm	Carbon, Aero 35 x 337mm (XS) / 357mm (S, M, L, XL)
Grip	Lock-on grips with soft-compound rubber adhered to an engineered core	--
Crankset	--	SHIMANO 105 FC-R7000 52/36T, Crank Arm: 170mm (XS, S, M) / 172.5mm (L, XL)
Pedals	Brompton Folding left hand and non-folding right-hand pedals	--
Chain	--	SHIMANO CN-HG601-11
Shifters	Brompton 2 and 3 speed Trigger shifters	SHIMANO 105 ST-R7020, 2x11-Speed DCL
Saddle	Brompton saddle with integrated carry handle. Incorporates a mount for a Brompton rear light and saddle bag	ENTITY FLUX2, CR-MO ø 7mm
Headset	Brompton headset	Integrated (IS) Sealed Bearing for OS Head Tube, IS 52/28.6 | IS 52/40
Derailleur Rear	--	SHIMANO 105 RD-R7000-SS Direct Attach
Hub Front	--	Alloy Thru Axle 12x100mm 24H Sealed Bearings Center Lock
Hub Rear	--	Alloy Thru Axle 12x142mm 24H Sealed Bearings Center Lock
Spoke	--	R: Stainless Straight Pull Butted NDS:279mm DS:277mm
Cassette	--	SHIMANO 105 CS-R7000-11 11-30T
Chainrings	44T (-12% gearing)	--
Bottom Bracket	Square taper bottom bracket	SHIMANO BB-RS500-PB

Tyres

Front	349 x 35C Schwalbe Marathon Racer. A puncture resistant tyre with a reflective sidewall	SCHWALBE One ADDIX 700x28C
Rear	349 x 35C Schwalbe Marathon Racer. A puncture resistant tyre with a reflective sidewall	SCHWALBE One ADDIX 700x28C
Wheel / RIM	Front-wheel: Double-wall rim, 28 spokes laced to a Brompton front hub. Rear-wheel: Double wall rim, 28 spoke, Brompton Wide ratio 3 speed internal gear hub with 2 speed external gears (13 and 16 tooth)	Wheel Set: ENTITY WR3 Disc (30mm) W/ Tubeless Tape Installed Rim: Carbon 622-19 24H for Tyre 622-28/62 Disc Tubeless Ready
Tube	Schrader valve	--

Brakes

Front	Brompton Dual Pivot Calipers	SHIMANO SM-RT70 160mm Rotor, SHIMANO 105 BR-R7070 Flat Caliper
Rear	Brompton Dual Pivot Calipers	SHIMANO SM-RT70 140mm Rotor, SHIMANO 105 BR-R7070 Flat Caliper
Brake Lever	--	SHIMANO 105 ST-R7020

Suspension

Front	--	--
Rear	--	--

Colors Available

Colors

Black (matt)

Cobalt Blue

Physical Specs

Length	--	--
Weight	12.1 kg	--

Overview

About	--	The Polygon Helios A7, featuring a UCI-approved ACX Performance frame and fork, offers precise Read More
Features	--	--
Additional Details	Folded Size : 645mm (H) x 565mm (W) x 270mm (D) (25.3” x 23” x 10.6”) Front carrier : Front carrier block adaptor for all types of Brompton luggage Mudguards : Mudguards with rubberised flap	--

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