Size Chart - Ridley Helium SLA 2019

	XXXS (41)	XXS (48)	XS (51)	S (54)	M (57)	L (60)	XL (63)
(A) Max Saddle Height	685	745	775	805	835	865	895
(B) Seat Tube	390	450	480	510	540	570	600
(C) Top Tube - Effective	500	515	525	545	565	585	600
(D) Head Tube Length	107	107	127	142	172	202	227
(E) Seat Tube Angle	75.5	75.0	74.0	73.5	73.0	72.5	72.5
(F) Head Tube Angle	70.0	71.8	72.0	73.0	73.5	73.5	74.0
(G) Chainstay Length	405	405	405	405	405	408	408
(H) BB Drop	67.1	68	68	66	66	63	63
(I) Wheelbase	976	970	970	977	987	1005	1014
(J) Standover Height	694	726	751	774	804	834	861
(S) Stack	500	507	527	543	573	599	625
(R) Reach	371	379	374	384	390	396	403