Handleless Eccentric Cam Ascenders
Chest Ascenders

This section includes mechanical ascenders consisting of a shell or frame and an eccentric cam assembly attached to the shell/frame at a single pivot point. The shell/frame is open on one side to allow admittance of the standing rope. No sling attachment points are provided on the cam. No handle is provided.

I split the Handleless Eccentric Cam Ascenders into these three groups:

• Hand Ascenders, for general use
• Chest Ascenders, specialized for Frog climbers
• Emergency Ascenders, small ascenders for emergency and specialized use.

Chest ascenders are specialized for people who prefer to climb with the Frog System, or are required to do so because of where they live. Almost all chest ascenders are left-handed, reflecting the bigoted views that normal people are right-handed and right-handed froggers need left-handed chest ascenders. Proverti is one manufacturer that does not express those views with their product line.

[ More about Eccentric Cam Ascenders | Eccentric Cam Classification ]

Image	ID	Device ↓	Description	Acquired	Weight ↓	Height ↓	Width ↓	Thickness ↓	Std. volume ↓	Channel Diameter ↓	Cam Angle ↓	Tooth Pattern ↓
	225 2137	Advanced Base Camp, Version A	LH chest, stamped frame, oval top hole, large oval bottom hole, hybrid cam /w sloping teeth, large loop safety with pivot on side of cam	On Rope 1, 2007 Bob Thrun Collection, 2017	141	103	75	37	285	15.3	31	(3.2.4)(1H1.2)^3(3.2)
	244 2138	Advanced Base Camp, Version B	LH chest, stamped frame, oval top hole, large oval bottom hole, hybrid cam /w sloping teeth, double-pin safety with pivot on side of cam	On Rope 1, 2008 Bob Thrun Collection, 2017	143	102	75	38	291	15.3	31	(3.2.4)(1H1.2)^3(3.2)
	278 2138	Advanced Base Camp, Version C	LH chest, stamped frame, oval top hole, large oval bottom hole, hybrid cam /w sloping teeth, small loop safety with pivot on side of cam	On Rope 1, 2009 Bob Thrun Collection, 2017	143	101	74	38	291	15.3	31	(3.2.4)(1H1.2)^3(3.2)
	2928	Alpidex Olymp	LH chest, stamped frame, irregular holes, stamped cam stop, braced cam /w straight teeth, tab safety below cam	ShoppingMadeEasy2, 2019	149	100	78	33	261	16.2	31	(3)(4.H)^2(3.H)^2(3.2.2)
	2933	Al’turs (Альтурс), Version A	LH, chest, stamped frame, oval top & bottom holes, pin cam stop, hybrid cam /w straight teeth, D-loop safety below cam	Artyom Babin (Артём Бабин), 2019	152	115	79	38	342	15.9	25	(3.4)(2S2.1S1)^2(2.2.3)
	3518	Al’turs (Альтурс), Version B	LH, chest, stamped frame, oval top & bottom holes, pin cam stop, hybrid cam /w straight teeth, D-loop safety below cam	Artyom Babin (Артём Бабин), 2022	146	113	79	43	382	15.7	25	(3.4)(2S2.1S1)^2(2.2.3)
	2143	Al’turs (Альтурс), Version C	LH chest, stamped frame, oval top hole, large oval bottom hole, pin cam stop, hybrid cam /w sloping teeth, knob safety below cam	Bob Thrun Collection, 2017	142	115	78	40	361	15.3	28	(2.2)(2S2.1S1)^2(1S1)^3(1.2)
	2150	Anthron AC-30, Version A	LH chest, stamped frame, round top hole, oval bottom hole, braced cam /w sloping teeth, pin safety below cam	Bob Thrun Collection, 2017	144	119	79	33	315	15.1	27	(3.2)^2(1.2)^2(B)
	2149	Anthron AC-30, Version B	LH chest, stamped frame, round top hole, oval bottom hole, plated braced cam /w sloping teeth, pin safety below cam	Bob Thrun Collection, 2017	144	119	79	33	315	14.3	27	(3.2)^2(1.2)^2(B)
	294	Anthron AC-30, Version C	LH chest, stamped frame, round top hole, oval bottom hole, braced cam /w sloping teeth, pin safety below cam	Rescue Technology, 2009	140	119	80	33	291	15.0	27	(3.2)^2(1.2)^2(B)
	2053	Beal Hold Up	LH chest, stamped frame, round top hole /w slot, rear hole, hybrid cam /w sloping teeth, knob safety below cam	Expé-Spelemat, 2016	156	82	72	59	347	15.5	33	(3.4)(1S1.2S2)^2(3.2.1)(BB)
	3450	Camnal Ascension	LH, chest, stamped frame, oval top & bottom holes, semi-web cam /w sloping teeth, plastic safety below cam	beautylover_uk, 2021	117	110	69	39	296	14.3	31	(3.4)(1S1)(2S2)^2(1S1.2S2)(3.4.3)
	1987 2086	Camp Turbochest	LH chest, stamped frame /w 2 Al rollers, subtriangular top hole, drooped cam /w sloping teeth, tab safety /w pull cord below cam	Expé-Spelemat, 2014 Bob Thrun Collection, 2017	110	92	57	38	199	14.5	28	(2)(1S1)^7(1)
	1974	CIC	LH, chest, stamped frame, oval top & bottom holes, open-web cam /w sloping teeth, tab safety below cam	Gold Bucket, 2014	158	117	79	35	319	18.0	27	(3)^3(1S1)^5(3)^2
	1938 1971 2144	Climb Tech	LH chest, stamped frame, oval top & bottom holes, open-web cam /w sloping teeth, tab safety below cam	Climb Tech, 2012 OmniProGear, 2014 Bob Thrun Collection, 2017	158	118	79	33	302	15.8	27	(3)^3(1S1)^5(3)^2
	2003 2009	Climbing Technology Chest Ascender Evo	LH chest, stamped frame, oval top hole, large oval bottom hole, hybrid cam /w sloping teeth, small loop safety with pivot on side of cam	Knot & Rope Supply / Amazon.com, 2015 Expé-Spelemat, 2015	145	107	77	37	307	15.2	31	(3.2.4)(1H1.2)^3(3.2)
	2981	Climbing Technology Chest Ascender HC	LH chest, hardcoat stamped frame, oval top hole, large oval bottom hole, hybrid cam /w sloping teeth, small loop safety with pivot on side of cam	Hector Avelianeda, 2021	148	107	77	36	292	15.2	31	(3.2.4)(1H1.2)^3(3.2)
	2989	Climbing Technology Chest Ascender +	LH chest, stamped frame, oval top hole, large oval bottom hole, hybrid cam /w sloping teeth, small loop safety with pivot on side of cam	Canyon Store, 2021	146	107	76	34	275	15.5	31	(3.2.4)(1H1.2)^3(3.2)
	2953	Cypher Evo	LH chest, stamped frame, oval top hole, large oval bottom hole, hybrid cam /w sloping teeth, small loop safety with pivot on side of cam	Boardparadise, 2019	146	107	77	37	307	15.2	31	(3.2.4)(1H1.2)^3(3.2)
	3532	Edelrid Chest Ascender Kit	LH, stamped frame, web strap /w  top ring & bottom carabiner, stamped cam stop, braced  cam /w straight teeth, tab safety below cam	Amanda Keast, 2022	337	113	76	39	331	15.9	31	(3)(4.H)^2(3.H)^2(3.2.2)
	3058	Edelrid Chest Cruiser	LH, stamped frame, back plate /w web strap, pin cam stop, open cam /w sloping teeth, plastic safety below cam	CanyonZone.com - Gertjan van Pelt, 2022	162	80	65	40	209	15.4	31	(3.2)(2.1H1)^3(2.3.2)
	3575	Edelrid Uni Cruiser	LH, stamped frame, back plate, pin cam stop, open cam /w sloping teeth, plastic safety below cam	CanyonZone.com - Gertjan van Pelt, 2022	124	106	65	32	222	15.4	31	(3.2)(2.1H1)^3(2.3.2)
	2384	Edelrid Windup	LH chest, stamped frame, oval top hole, large oval bottom hole, hybrid cam /w sloping teeth, small loop safety with pivot on side of cam	Amazon.com, 2019	147	107	76	37	296	15.1	31	(3.2.4)(1H1.2)^3(3.2)
	2312	Edelweiss TB16	LH chest, stamped frame, round top hole /w slot, rear hole, hybrid cam /w sloping teeth, knob safety below cam	Buffalo Gap Outfitters, 2017	157	78	72	36	203	15.5	33	(3.4)(1S1.2S2)^2(3.2.1)(BB)
	203	Emilsa	LH chest, stamped frame, unfinished, oval top hole, steel-lined oval bottom hole, open cam /w sloping teeth, shell-mounted safety /w hook	Luc Bourguignon, 2005	174	126	87	38	413	15.2	22	(2.3)(4.3)^5(2.3)
	2329	Epic Peak	LH, chest, stamped frame, oval top & bottom holes, open-web cam /w sloping teeth, tab safety below cam	Epic Peak Gear, 2017	159	118	81	35	335	16.5	28	(3)^3(1S1)^5(3)^2
	3498	Fixe	LH, chest, stamped frame, oval top & bottom holes, asymmetrical open-web cam /w sloping teeth, tab safety below cam	Barrabés.com, 2021	166	116	78	39	351	14.8	28	(3)^3(2)(1S1)^4(3)^2
	2330	GM Climbing	LH, chest, stamped frame, oval top & bottom holes, open-web cam /w sloping teeth, tab safety below cam	Emma Xiao, 2017	159	118	81	35	335	16.5	28	(3)^3(1S1)^5(3)^2
	3546	Goracon	2 LH, chest, stamped frame, subtriangular top & D-shaped bottom hole, hybrid cam /w sloping teeth, tab safety below cam	Bobby Smith, 2022	136	111	74	33	269	16.1	30	(2.4)(1S1.2S2)^2(1S1)(2.3)
	3500	heightec Sync D44	LH, chest, stamped frame, open top & closed bottom slots, stamped cam stop, open-web cam /w straight teeth, plastic safety below cam	heightec, 2022	145	96	75	35	256	15.2	31	(2)(1.2)^8(B)
	3501	heightec Twist D42	LH chest, stamped frame, oval top hole, distorted bottom hole, stamped cam stop, open-web cam /w straight teeth, plastic safety below cam	heightec, 2022	149	107	71	34	258	15.8	31	(2)(1.2)^8(B)
	268 2140	heightec-PMI Twist D42A, Version A	LH chest, stamped frame, oval top hole, distorted bottom hole, open-web cam /w straight teeth, pin safety below cam	On Rope 1, 2009 Bob Thrun Collection, 2017	142	107	71	31	229	15.8	25	(1.2^3)^2(1.2)^2(B)
	1502 2141	heightec-PMI Twist D42A, Version B	LH chest, stamped frame, oval top hole, distorted bottom hole, open-web cam /w straight teeth, plastic safety below cam	On Rope 1, 2009 Bob Thrun Collection, 2017	145	103	73	38	229	16.1	25	(1.2^3)^2(1.2)^2(B)
	3609/3610	I Climb (元鴻興有限公司) #672	LH & RH chest, forged frame, round top hole, D bottom hole, drooped cam /w straight teeth, tab safety below cam	I Climb via Kevin M. Mai ZhongJie, 2023	128	110	60	36	240	16.7	36	((2)(1H1)(2.3))^3(1)
	3611	I Climb (元鴻興有限公司) #674	LH & RH chest, forged frame, top slot, D bottom hole, drooped cam /w straight teeth, tab safety below cam	I Climb via Kevin M. Mai ZhongJie, 2023	122	98	60	37	213	16.7	36	((2)(1H1)(2.3))^3(1)
	2313	International Safety Components RP229	LH, chest, stamped frame, oval top & bottom holes, asymmetrical open-web cam /w sloping teeth, tab safety below cam	F R Jones and Son, 2017	163	117	77	40	354	14.5	28	(3)^3(2)(1S1)^4(3)^2
	2941	Ito-Rocky	LH chest, stamped frame, oval holes, stamped cam stop, braced cam /w straight teeth, tab safety below cam	Ito Rocky Direct, 2019	163	115	77	41	355	15.6	31	(3)(4.H)^2(3.H)^2(3.2.2)
	2915	Kailas Chest-Up	LH chest, milled frame, oval top and irregular bottom hole, drooped cam /w cutouts & straight teeth, plastic safety below cam	Kailas / Amazon, 2019	107	97	65	30	191	15.0	30	(3.4)(1S1.2S2)^2(2.2.3)
	2916	Kaunas Polytechnic Institute	LH Chest, milled AL shell, drilled plate cam /w "Z" teeth, push-button safety on shell	Gintautas Švedas, 2019	184	100	60	25	149	15.1	27	(4Z)^9
	9	Kong-Bonaiti Cam-Clean, Version A	LH chest, stamped frame, oval top hole, large oval bottom hole, asymmetrical open-web cam /w sloping teeth, pin safety below cam	Bob & Bob, 1987	155	117	77	40	360	15.8	34	(3.4)(H.3)^3(H.2.1)
	2145	Kong-Bonaiti Cam-Clean, Version B	LH chest, stamped frame, oval top hole, large oval bottom hole, asymmetrical open-web cam /w sloping teeth, pin safety below cam	Bob Thrun Collection, 2017	149	115	80	39	362	14.8	30	(3)(4.H)^2(3.H)^2(2.2.1)
	3429	Kong-Bonaiti Cam-Clean, Version C	LH chest, stamped frame, oval top hole, large oval bottom hole, asymmetrical open-web cam /w sloping teeth, pin safety below cam	Kristen Ongoy, 2021	149	115	80	39	362	14.8	30	(3)(4.H)^2(3.H)^2(2.2.1)
	2146	Kong-Bonaiti Cam-Clean, Version D	LH chest, stamped frame, oval top hole, large oval bottom hole, asymmetrical open-web cam /w sloping teeth, pin safety below cam	Bob Thrun Collection, 2017	154	115	80	40	362	15.7	30	(3)(4.H)^2(3.H)^2(2.2.1)
	2018	Kong Cam-Clean	LH chest, stamped frame, oval top hole, large oval bottom hole, asymmetrical open-web cam /w sloping teeth, tab safety below cam	Outdoor Shopping LLC, 2015	152	115	76	40	354	13.7	30	(3)(4.H)^2(3.H)^2(3.2.2)
	1537 2152	Kong Futura Body	LH, extruded, milled & bent Al shell, pin cam stop, open cam /w sloping teeth, tab safety /w pull cord below cam	Expé-Spelemat, 2010 Bob Thrun Collection, 2017	82	82	48	35	139	13.9	32	(4)(5.2H2)^2(4.2)
	1582	Krok Chest Strap	LH, stamped & painted Al shell, hybrid cam /w straight teeth, double-pin safety with pivot on side of cam	Gear4Rocks, 2012	147	114	69	31	245	15.2	32	(3.2)(2.2.H)^3(2.2.3.2)
	2991	Krok Krol	LH, stamped & painted steel shell, hybrid cam /w straight teeth, small loop safety with pivot on side of cam	Krok, 2021	217	109	72	30	233	16.7	31	(3.2.2)(1H1.2)^3(2.3.2)
	2335	Magideal, Version A	LH chest, stamped frame, subtriangular top hole, oval bottom hole, drooped cam /w sloping teeth, tab safety /w pull cord below cam	Suntek, 2017	97	102	60	32	196	15.0	33	(3.4.H.4.2.3.H.2.2.1)(1H1)(4.3)
	2333	Magideal, Version B	LH chest, stamped frame /w 2 Al rollers, subtriangular top hole, oval bottom hole, drooped cam /w sloping teeth, tab safety /w pull cord below cam	Suntek, 2017	107	90	58	38	198	15.0	33	(3.4.H.4.2.3.H.2.2.1)(1H1)(4.3)
	3428	NewDoar, Version A	LH, chest, stamped frame, subtriangular top & D-shaped bottom hole, hybrid cam /w sloping teeth, tab safety below cam	FSAS LLC, 2021	138	111	74	35	285	15.6	30	(2.4)(1S1.2S2)^2(1S1)(2.3)
	3427	NewDoar, Version B	LH chest, stamped frame, oval holes, stamped cam stop, braced cam /w straight teeth, tab safety below cam	Meituo / Amazon.com, 2021	160	116	78	31	278	15.6	31	(3)(4.H)^2(3.H)^2(3.2.2)
	2015	NTR, Version A	LH, chest, stamped frame, oval top & bottom holes, open-web cam /w sloping teeth, tab safety below cam	Linko Chen 训连 陈, 2015	160	117	82	35	333	14.9	27	(3)^3(1S1)^5(3)^2
	2085	NTR, Version B	RH, chest, stamped frame, subtriangular top & D-shaped bottom hole, hybrid cam /w sloping teeth, tab safety below cam	Bob Thrun Collection, 2017	134	110	74	34	278	14.9	30	(2.4)(1S1.2S2)^2(1S1)(2.3)
	1960 2148	Petzl Croll, Version A	LH chest, stamped frame, oval top hole, large oval bottom hole, semi-open web cam /w sloping teeth, knob safety below cam	Bob Thrun, 2013 Bob Thrun Collection, 2017	135	117	75	36	317	13.7	25	(F)(3.4)^3(3.2)^2(3)
	10	Petzl Croll, Version B	LH chest, stamped frame, oval top hole, large oval bottom hole, semi-open web cam /w sloping teeth, pin safety below cam	Speleoshoppe, 1979	137	117	76	38	338	17.1	25	(F)(3.4)^3(3.2)^2(3)
	295	Petzl Croll, Version C	LH chest, stamped frame, oval top hole, large oval bottom hole, semi-open web cam /w sloping teeth, pin safety below cam	Bruce Ellison, 2009	136	119	76	37	338	14.5	24	(3.4)^2(3.2)^2(1.2)
	11 2147	Petzl Croll, Version D	LH chest, stamped frame, oval top hole, large oval bottom hole, pin cam stop, hybrid cam /w sloping teeth, D-loop safety below cam	Bob & Bob, 1988 Bob Thrun Collection, 2017	138	119	76	39	353	15.9	25	(2.3)(2S2.1S1)^2(1S1)^3(1.2)
	3517	Petzl Croll, Version E	LH chest, stamped frame, oval top hole, large oval bottom hole, pin cam stop, hybrid cam /w sloping teeth, D-loop safety below cam	Josep Guarro, 2022	145	119	76	36	327	15.1	25	(2.3)(2S2.1S1)^2(1S1)^3(1.2)
	214	Petzl Croll, Version F	LH chest, stamped frame, large top hole, large oval bottom hole, pin cam stop, hybrid cam /w sloping teeth, D-loop safety below cam	Andy Dopson, 2007	142	119	77	37	339	14.8	26	(2.3)(2S2.1S1)^2(1S1)^3(1.2)
	3613	Petzl Croll, Version G	LH chest, stamped frame, large top hole, large oval bottom hole, pin cam stop, hybrid cam /w sloping teeth, D-loop safety below cam	Cheryl Clementi, 2023	146	119	78	38	354	15.1	29	(2.3)(2S2.1S1)^2(1S1)^3(1.2)
	215	Petzl Croll, Version H	LH chest, stamped frame, large top hole, large oval bottom hole, pin cam stop, hybrid cam /w sloping teeth, D-loop safety below cam	Andy Dopson, 2007	142	119	78	38	352	14.8	26	(2.3)(2S2.1S1)^2(1S1)^3(1.2)
	237 3466	Petzl Croll, Version I	LH chest, stamped frame, large top hole, large oval bottom hole, pin cam stop, hybrid cam /w sloping teeth, D-loop safety below cam	Ross Strother, 2008 On Rope 1, 2021	144	119	81	38	364	16.3	26	(2.3)(2S2.1S1)^2(1S1)^3(1.2)
	126 2081	Petzl Croll, Version J	LH chest, stamped frame, large top hole, large oval bottom hole, stamped cam stop, semi-open web cam /w sloping teeth, plastic safety below cam	On Rope 1, 2005 Bob Thrun Collection, 2017	130	103	70	38	274	14.2	32	(3.4)(1S1.2S1)^2(1S1.2.3)
	193	Petzl Croll, Version K	LH chest, stamped frame, oval top hole, large oval bottom hole, stamped cam stop, semi-open web cam /w sloping teeth, plastic safety below cam	Bob & Bob, 1997	133	109	75	37	304	14.2	32	(3.1.4)(1S1.1S0.2S1)^2(1S1.2.3)
	2080	Petzl Croll, Version L	LH chest, stamped frame, oval top hole, large oval bottom hole, stamped cam stop, semi-open web cam /w sloping teeth, plastic safety below cam	Bob Thrun Collection, 2017	132	109	75	37	305	14.2	32	(3.1.4)(1S1.1S0.2S1)^2(1S1.2.3)
	2371	Petzl Croll, Version M	LH chest, stamped frame, top slot with webbing to D-ring,  large oval bottom hole, stamped cam stop, semi-open web cam /w sloping teeth, plastic safety below cam	Stacey Sims, Leather and Lacy Acres (stacsim-6), 2018	238	109	78	37	315	15.3	32	(3.4)(1S1.2S2)^2(1S1.2.3)
	1965 2064	Petzl Croll, Version N	LH chest, stamped frame /w SS insert, large oval top & bottom holes, stamped cam stop, semi-web cam /w sloping teeth, plastic safety below cam	On Rope 1, 2013 Bob Thrun Collection, 2017	83	97	58	30	169	13.2	38	(3.4)((1S1)^2.2S2)^2(3.4.3)
	2372	Petzl Croll, Version O	LH chest, stamped frame, oval top hole, irregular bottom hole, semi-web cam /w sloping teeth, plastic safety below cam	On Rope 1, 2018	138	110	79	41	359	15.6	32	(3.4)(1S1)^2(2S2)(1S1)^4(3.4.3)
	2020	Proverti CD 201L	RH, stamped frame, pear top hole, D bottom hole, hybrid cam /w sloping teeth, tab safety below cam	Ondřej Belica, 2015	137	110	74	33	269	16.3	39	(2.4)(1S1.2S2)^2(1S1)(2.3)
	2035	Proverti CD 202L	LH, stamped frame, pear top hole, D bottom hole, hybrid cam /w sloping teeth, tab safety below cam	Ondřej Belica, 2015	137	110	74	33	269	16.3	39	(2.4)(1S1.2S2)^2(1S1)(2.3)
	247	Repetto Cirano	LH chest, stamped frame, oval top hole, large oval bottom hole, hybrid cam /w sloping teeth, small loop safety with pivot on side of cam	Expé-Spelemat, 2008	145	103	76	39	306	15.4	31	(3.2.4)(1H1.2)^3(3.2)
	2356	Rock Empire	LH, chest, stamped frame, oval top & bottom holes, open-web cam /w sloping teeth, plastic-covered tab safety below cam	Ondřej Belica / Climbing CZ sro, 2017	163	118	78	33	298	16.5	28	(3)^3(1S1)^5(3)^2
	2963	Rock Empire Chest Up	LH, chest, stamped frame, oval top hole, bottom swivel eye, semi-web cam /w sloping teeth, plastic safety below cam	Ondřej Belica / Climbing CZ sro, 2020	118	98	62	31	189	13.2	37	(2)^3(1S1.2S2.1S1)(2)^3(4^2)
	3641	S.E.Peak SA-208	LH, stamped frame, subtriangular top and subtrapezoidal bottom hole,, semi-web cam /w straight teeth, plastic safety below cam	copelandmacd-11, 2024	137	106	77	35	286	15.5	31	(3.4)(1S1)^2(2S2)(1S1^2)(2.3.4.3)
	3608	Singing Rock, Version A	LH chest, stamped frame, oval top hole, large oval bottom hole, hybrid cam /w sloping teeth, double-pin safety with pivot on side of cam	Raquel Salinas, 2023	148	104	76	39	304	15.2	31	(3.2.4)(1H1.2)^3(3.2)
	2023	Singing Rock, Version B	LH chest, stamped frame, oval top hole, large oval bottom hole, hybrid cam /w sloping teeth, small loop safety with pivot on side of cam	Over the Ground, 2015	146	106	77	35	286	15.0	31	(3.2.4)(1H1.2)^3(3.2)
	2962 3570	Singing Rock, Version C	LH chest, stamped frame, oval top hole, large oval bottom hole, braced cam /w sloping teeth, plastic safety below cam	Ondřej Belica / Climbing CZ sro, 2020 Ondřej Belica / Climbing CZ sro, 2022	127	101	77	35	271	14.5	33	(3)(4.1H1)^3(2.2.3.3)
	19 2155	Single Rope Technique Equipment A1 811	LH chest, extruded frame, round top & bottom holes, semi-web cam /w straight teeth, pin safety below cam	Inner Mountain Outfitters, 1994 Bob Thrun Collection, 2017	225	113	76	39	335	14.3	25	(3.4)^2(5.4)^2(3.4)^2(F)
	148	Single Rope Technique Equipment A4 816 L	LH chest, 16 mm. rope, extruded frame, round top & bottom holes, semi-web cam /w straight teeth, pin safety below cam	Single Rope Technique Equipment, 2000	292	116	80	43	398	17.9	29	(3.4)^2(5.4)^2(3.4)^2(F)
	17 2153	Single Rope Technique Equipment A4 816, Version A	LH chest, extruded frame, round top & bottom holes, semi-web cam /w straight teeth, pin safety below cam	Single Rope Technique Equipment, 1989 Bob Thrun Collection, 2017	279	118	81	46	438	17.7	27	(4.5)^3, (4.3)^2(4)
	2154	Single Rope Technique Equipment A4 816, Version B	LH chest, extruded frame, round top & bottom holes, semi-web cam /w straight teeth, pin safety below cam	Bob Thrun Collection, 2017	292	115	80	43	393	17.7	27	(4.5)^3, (4.3)^2(4)
	1959 2098	Single Rope Technique Equipment / Rollgliss / DBI Sala Rescue Explorer	LH chest, extruded frame, top slot & oval bottom holes, semi-web cam /w straight teeth, pin safety below cam	ropeandrescue.com, 2013 Bob Thrun Collection, 2017 (2) Lance Swartwout, 2019	178	102	65	24	162	14.4	22	(4.5)^3, (4.3)^2(4)
	1961 2151	SOB RB16 AAA	LH chest, stamped frame, large top hole, large oval bottom hole, hybrid cam /w sloping teeth, tab safety below cam	Xuefei Liu, 2013 Bob Thrun Collection, 2017	140	114	82	34	318	16.8	33	(4)(1S1.2S2.1S1)(4)(1S1)^4(4)
	2912	SOB, Version B	LH chest, stamped frame, long oval top hole, large oval bottom hole, stamped cam stop, hybrid cam /w sloping teeth, tab safety below cam	Strade FarEast Ltd. (perfeclan), 2019	138	107	80	30	259	15.6	30	(4.2)(2S2.1S1)(4)(1S1)^3(2.4)
	1958	Spent Prsní, nožní	LH chest, stamped frame, round holes, pin cam stop, Al plate cam /w hard insert teeth, pin safety below cam	Ondřej Belica, 2013	165	127	81	37	381	15.2	22	(3.2)^5
	2908	SunniMix	LH chest, stamped frame, pear top and round bottom hole, drooped cam /w sloping teeth, tab safety /w pull cord below cam	motorpartsvalue, 2019	99	102	60	34	209	14.6	35	(3.4)(1H1)(2.3)(1H1)(2.3)(H)(4.3)
	2334	SUT	LH chest, stamped frame, oval holes, stamped cam stop, braced cam /w straight teeth, tab safety below cam	Suntek, 2017	160	116	80	39	368	14.7	31	(3)(4.H)^2(3.H)^2(3.2.2)
	2913 2914	Tupa	LH, chest, stamped frame, subtriangular top & oval bottom hole, hybrid cam /w straight teeth, tab safety below cam	Ling Rukuan, Yuanyiguang Technology (colorsleaf), 2019	145	114	79	33	293	15.5	25	(3.4)(1S1.1S1)(4)(1S1)^3(2.3.2.2.3)
	140	VauDe AC-30	LH chest, stamped frame, oval top hole, large oval bottom hole, braced cam /w sloping teeth, pin safety below cam	Inner Mountain Outfitters, 1999	147	109	76	33	273	15	24	(3.2)^2(1.2)^2(B)
	2377	Vento (Венто)	LH, chest, stamped frame, oval top & bottom holes, asymmetrical open-web cam /w sloping teeth, tab safety below cam	Artyom Babin (Артём Бабин), 2019	164	116	76	40	350	14.8	28	(3)^3(2)(1S1)^4(3)^2
	2378	Vertical (Вертикаль), Version A	LH, chest, stamped frame, oval top & bottom holes, pin cam stop, semi-web cam /w straight teeth, cast Al safety below cam	Artyom Babin (Артём Бабин), 2019	141	107	73	38	293	15.4	32	(3.4)(1S1.2S2)^3(3)
	2379	Vertical (Вертикаль), Version B	LH, chest, stamped frame, oval top & bottom holes, pin cam stop, semi-web cam /w straight teeth, cast Al safety below cam	Artyom Babin (Артём Бабин), 2019	143	107	73	40	309	15.4	32	(3.4)(1S1.2S2)^3(3)
	2930	Vertical (Вертикаль), Version C	LH, chest, stamped frame, oval top & bottom holes, pin cam stop, semi-web cam /w straight teeth, plastic safety below cam	Artyom Babin (Артём Бабин), 2019	133	109	76	38	316	15.5	32	(3.4)(1S1.2S2)^3(3)
	2975	Vertical (Вертикаль), Version D	LH, chest, stamped frame, oval top & bottom holes, pin cam stop, semi-web cam /w straight teeth, plastic safety below cam	Artyom Babin (Артём Бабин), 2020	138	108	75	38	309	15.4	30	(3.4)(1S1.2S2)^2(1S1)^2(3)
	20	Walkosz i Spółka Chest, Version A	LH, chest, stamped frame, round top & bottom holes, semi-open web cam /w sloping teeth, knob safety below cam	John E. Weinel, Inc.	144	115	79	37	336	15.5	23	(3.2)^2(4)(3.2)^2(1.2)
	2141	Walkosz i Spółka Chest, Version B	LH, chest, stamped frame, round top & bottom holes, pin cam stop, hybrid cam /w sloping teeth, pin safety below cam	Bob Thrun Collection, 2017	158	118	77	37	340	15.2	24	(1S1.2S2)^2(1S1)^4(2)
	3626	WestFall Pro RP229	LH, chest, stamped frame, oval top & bottom holes, asymmetrical open-web cam /w sloping teeth, tab safety below cam	Iavic Chikhichen, 2023	166	117	77	39	351	14.4	28	(3)^3(2)(1S1)^4(3)^2
	3416	Wildken	LH, chest, stamped frame, oval top & bottom holes, semi-web cam /w sloping teeth, plastic safety below cam	Amazon.com, 2021	121	110	71	39	303	13.3	31	(3.2)(1S1)^3(2S2)(1S1)^3(3.4.3)
	2328	Xinda, Version A	LH, chest, stamped frame, oval top & bottom holes, open-web cam /w sloping teeth, tab safety below cam	Kuang Kianjin, 2017	159	118	81	35	335	16.5	28	(3)^3(1S1)^5(3)^2
	2957	Xinda, Version B	LH, chest, stamped frame, D top & irregular holes, drooped cam /w cutouts & straight teeth, folding tab safety below cam	Pan Shaobin, 2020	110	102	63	32	205	15.9	37	(3.3.4.2)(2S2)(1S1)^4(3.4.3)
	3408	Xinda, Version C	LH, chest, stamped frame, subtriangular top & oval bottom hole, hybrid cam /w sloping teeth, pin safety with pivot on side of cam	e4store, 2021	144	113	78	34	304	15.5	33	(3.4)(1S1)^2(4)((1S1)^3(2.3.2.2.3)
	1970 2101	Yoke	LH, chest, stamped frame, oval top & bottom holes, asymmetrical open-web cam /w sloping teeth, tab safety below cam	Kwikspace, 2014 Bob Thrun Collection, 2017	166	117	79	40	374	16.5	28	(3)^3(2)(1S1)^4(3)^2
	3557	Z&W	LH, chest, stamped frame, oval top & bottom holes, open-web cam /w sloping teeth, tab safety below cam	Hou Wenzheng, 2022	145	117	78	31	284	16.5	28	(3)^3(2)(1S1)^4(3)^2

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