Ubworoherane ku busa

Ubusambanyi hejuru yumurongo (nanone bwitwa cross camber na cross bow) bugaragazwa nkijanisha ryubugari bwumugozi. Kudahuza kumurongo, rimwe na rimwe bita coil-set, nabyo bigaragazwa nkijanisha. Keretse niba byumvikanyweho ukundi kuburebure bwo gupima = ubugari bwumurongo wo gupima uburinganire hamwe no kuruhande. Ingaruka ziterwa nimpagarara zisigaye ziva kumurongo zirahari.

Ubworoherane		Icyiciro ntarengwa cyemewe cyo gutandukana (% yubugari bwa nominal)
P0		-
P1		0.4
P2		0.3
P3		0.2
P4		0.1
P5		Nkuko umukiriya abisabwa bidasanzwe

Icyiciro cyo kwihanganirana	Ubugari bwa Strip
	8 - (20) mm		20 - (50) mm		50 - (125) mm		125mm~
	Gupima uburebure
	1m	3m	1m	3m	1m	3m	1m	3m
	Ntarengwa yemerewe gutandukana (mm)
R1	5	45	3.5	31.5	2.5	22.5	2	18
R2	2	18	1.5	13.5	1.25	11.3	1	9
R3	1.5	13.5	1	9	0.8	7.2	0.5	4.5
R4	1	9	0.7	6.3	0.5	4.5	0.3	2.7
R5	Nkuko umukiriya abisabwa bidasanzwe