Filtriraj rezultate
BF Goodrich Goodyear Tracmax celoletne pnevmatike
1092 izdelka
![BF Goodrich celoletna pnevmatika g-Grip All Season 2, 175/70R14 84T](/static/slike/blank_150x150.jpg)
2
ponudbe
Dodaj na seznam želja
![Goodyear celoletna pnevmatika KMAX D 315/70R22.5](/slike/products/37/04/4700437/thumb80_goodyear-cjelogodisnja-guma-kmax-d-315-70r225_171d17ee.png)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons FP 235/45R20 100W](/slike/products/01/96/52119601/thumb80_cjelogodisnje-gume-goodyear-vector-4seasons-fp-235-45r20_13c12426.jpeg)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons Gen-3 255/45R20 105W](/slike/products/10/98/36259810/thumb80_goodyear-cjelogodisnja-guma-vector-4seasons-gen-3-255-45r20-105w_d11e8071.jpeg)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika KMAX T 445/45R19.5](/slike/products/73/68/14566873/thumb80_goodyear-cjelogodisnja-guma-kmax-t-445-45r195_ec60999f.png)
Goodyear celoletna pnevmatika KMAX T 445/45R19.5
od 737,80 €
2
ponudbe
Dodaj na seznam želja
![BF Goodrich Advantage SUV All-Season ( 235/45 R19 99V XL )](/slike/products/16/99/43539916/thumb80_cjelogodisnje-gume-bf-goodrich-advantage-suv-all-season-235-45-r19-99v-xl-_42dff025.png)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons XL 235/50R20 104T](/slike/products/26/87/49318726/thumb80_cjelogodisnje-gume-goodyear-cjelogodisnja-guma-vector-4seasons-xl-235-50r20-104t_9bf9627f.jpeg)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Eagle Sport All Season XL FP 285/40R20 108V](/slike/products/61/94/54809461/thumb80_cjelogodisnje-gume-goodyear-cjelogodisnja-guma-eagle-sport-all-season-xl-fp-285-40r20_5e9f6fe5.jpeg)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons 195/60R15 88H/88V](/slike/products/09/69/4696909/thumb80_goodyear-cjelogodisnja-guma-vector-4-seasons-xl-195-65r15-95h_fd46eeb0.jpeg)
6
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Wrangler Duratrac 285/70R17 118Q](/slike/products/68/05/48600568/thumb80_goodyear-wrangler-duratrac-285-70r17_eb6fb3cb.jpeg)
2
ponudbe
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons 205/45R17 88W](/slike/products/95/61/19486195/thumb80_goodyear-vector-4-seasons-205-45r17_5e9f3dfa.jpeg)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons 185/65R15 88H/88T/88V/92T/92V/97S](/slike/products/21/68/4696821/thumb80_goodyear-cjelogodisnja-guma-vector-4-seasons-185-60r14-82h_2b5aa99a.jpeg)
21
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons 275/45R20 110W](/slike/products/25/42/45454225/thumb80_goodyear-cjelogodisnja-guma-vector-4seasons-275-45r20-110w_5032ea02.png)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Wrangler Duratrac XL 255/65R19 114Q](/slike/products/27/66/9736627/thumb80_goodyear-cjelogodisnja-guma-wrangler-duratrac-xl-255-65r19-114q_cd4f8289.jpeg)
2
ponudbe
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons XL TL 205/55R17 95V](/slike/products/91/88/17698891/thumb80_goodyear-cjelogodisnja-guma-vector-4-seasons-xl-tl-205-55r17-95v_52566163.jpeg)
4
ponudbe
Dodaj na seznam želja
![BF Goodrich Advantage All-Season ( 195/55 R16 87H )](/static/slike/blank_150x150.jpg)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons XL FP 225/45R17 94V/94W](/slike/products/23/72/4697223/thumb80_goodyear-cjelogodisnja-guma-vector-4-seasons-xl-fp-225-45r17-94v_95df6e88.png)
10
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons XL FP 285/45R19 111V](/static/slike/blank_150x150.jpg)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika KMAX T 245/70R17.5](/slike/products/43/04/4700443/thumb80_goodyear-cjelogodisnja-guma-kmax-t-245-70r175_1ae6c197.png)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons SUV 235/55R19 105W](/slike/products/96/19/36061996/thumb80_goodyear-cjelogodisnja-guma-vector-4seasons-suv-235-55r19-105w_9972f4f1.png)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons 205/70R15 106S](/slike/products/12/47/45774712/thumb80_goodyear-vector-4seasons-205-70r15_d02bcafa.jpeg)
2
ponudbe
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons Gen-3 SUV 255/45R20 105T](/slike/products/40/86/36258640/thumb80_goodyear-cjelogodisnja-guma-vector-4seasons-gen-3-suv-255-45r20-105t_d11e8071.jpeg)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons 215/55R16 97V](/slike/products/81/66/4696681/thumb80_goodyear-cjelogodisnja-guma-vector-4-seasons-xl-195-65r15-95h_fd46eeb0.jpeg)
3
ponudbe
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons Gen-3 SUV 225/60R17 103V](/slike/products/78/96/36259678/thumb80_goodyear-cjelogodisnja-guma-vector-4seasons-gen-3-suv-225-60r17-103v_2100d32d.jpeg)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons Gen-2 185/60R15 84T](/slike/products/81/84/36258481/thumb80_goodyear-cjelogodisnja-guma-vector-4seasons-gen-2-185-60r15-88h_f84690f4.jpeg)
2
ponudbe
Dodaj na seznam želja
![BF Goodrich Advantage SUV All-Season ( 225/60 R18 100H )](/static/slike/blank_150x150.jpg)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons Gen-3 SUV 225/50R19 100V](/slike/products/84/78/36257884/thumb80_goodyear-cjelogodisnja-guma-vector-4seasons-gen-3-suv-225-50r19-100v_d11e8071.jpeg)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons XL SUV FP 255/40R21 102T](/slike/products/46/97/39779746/thumb80_goodyear-cjelogodisnja-guma-vector-4seasons-xl-suv-fp-255-40r21-102t_5238bb4d.jpeg)
2
ponudbe
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons Gen-3 XL 215/65R16 102H/102V](/slike/products/77/59/36305977/thumb80_goodyear-cjelogodisnja-guma-vector-4seasons-gen-3-xl-215-65r16-102h_da722b89.jpeg)
4
ponudbe
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons 215/75R16C 114R/114T/116R](/slike/products/35/38/8283835/thumb80_goodyear-pneumatika-vector-4seasons-cargo-215-75r16c-116-114r_b35d3ede.png)
3
ponudbe
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons XL SUV 255/45R20 105T](/slike/products/15/54/36045415/thumb80_goodyear-cjelogodisnja-guma-vector-4seasons-xl-suv-255-45r20-105t_cc6ac7be.jpeg)
4
ponudbe
Dodaj na seznam želja
![BF Goodrich Advantage All-Season ( 195/45 R16 84H XL )](/static/slike/blank_150x150.jpg)
1
ponudba
Dodaj na seznam želja
![BF Goodrich Advantage All-Season ( 185/50 R16 81H )](/static/slike/blank_150x150.jpg)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons 165/70R13 79T](/slike/products/47/66/4696647/thumb80_goodyear-cjelogodisnja-guma-vector-4-seasons-fp-205-55r16-91v_582832ae.jpeg)
2
ponudbe
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons Gen-2 165/60R14 75H](/slike/products/38/94/36259438/thumb80_goodyear-cjelogodisnja-guma-vector-4seasons-gen-2-165-60r14-75h_f84690f4.jpeg)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Eagle Sport All Season 255/45R20 105V](/slike/products/59/96/20039659/thumb80_goodyear-eagle-sport-all-season-255-45r20_19aef910.jpeg)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Wrangler Duratrac 255/55R19 111Q/112Q/115Q](/slike/products/07/66/9416607/thumb80_goodyear-cjelogodisnja-guma-wrangler-duratrac-255-55r19-111q_f56173e9.jpeg)
3
ponudbe
Dodaj na seznam želja
![Tracmax Trac Saver ( 165/65 R14 79T )](/slike/products/67/71/10407167/thumb80_tracmax-trac-saver-165-65-r14-79t-cijelogodisnje-gume_5bb6c337.jpeg)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons XL SUV 255/45R19 104W](/slike/products/50/23/36062350/thumb80_goodyear-cjelogodisnja-guma-vector-4seasons-xl-suv-255-45r19-100w_5238bb4d.jpeg)
4
ponudbe
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons Gen-3 SUV 235/60R18 107W](/slike/products/74/85/36258574/thumb80_goodyear-cjelogodisnja-guma-vector-4seasons-gen-3-suv-235-60r18-107w_2100d32d.jpeg)
1
ponudba
Dodaj na seznam želja
![Goodyear Eagle F1 Asymmetric AT ( 235/60 R18 107V XL J, LR, SUV )](/slike/products/63/54/7465463/thumb80_goodyear-eagle-f1-asymmetric-at-235-60-r18-107v-xl-j-lr-suv-_c1018fa7.png)
3
ponudbe
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons XL 185/65R15 92T/92V](/slike/products/37/67/10526737/thumb80_goodyear-cjelogodisnja-guma-vector-4-seasons-xl-185-65r15-92t-92v_caadca49.jpeg)
21
ponudba
Dodaj na seznam želja
![BF Goodrich Advantage SUV All-Season ( 265/50 R20 111V XL )](/static/slike/blank_150x150.jpg)
1
ponudba
Dodaj na seznam želja
![BF Goodrich celoletna pnevmatika g-Grip All Season 2, 165/70R14 81T](/static/slike/blank_150x150.jpg)
2
ponudbe
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons Gen-2 215/45R16 90V](/slike/products/41/94/36259441/thumb80_goodyear-cjelogodisnja-guma-vector-4seasons-gen-2-215-45r16-90v_f84690f4.jpeg)
1
ponudba
Dodaj na seznam želja
![BF Goodrich Advantage All-Season ( 225/55 R16 99W XL )](/static/slike/blank_150x150.jpg)
1
ponudba
Dodaj na seznam želja
![BF Goodrich Advantage All-Season ( 185/55 R16 83V )](/static/slike/blank_150x150.jpg)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons Gen-3 215/55R16 97V](/slike/products/81/96/36259681/thumb80_goodyear-cjelogodisnja-guma-vector-4seasons-gen-3-215-55r16-97v_78277217.jpeg)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika KMAX D 225/75R17.5](/slike/products/49/89/6318949/thumb80_goodyear-cjelogodisnja-guma-kmax-d-225-75r175_3dcf22e6.jpeg)
Goodyear celoletna pnevmatika KMAX D 225/75R17.5
od 317,86 €
2
ponudbe
Dodaj na seznam želja
![BF Goodrich Advantage SUV All-Season ( 215/65 R16 98H )](/slike/products/89/61/22456189/thumb80_cjelogodisnje-gume-bf-goodrich-advantage-suv-all-season-215-65-r16-98h-_42dff025.png)
1
ponudba
Dodaj na seznam želja
![BF Goodrich celoletna pnevmatika g-Grip All Season 2, 215/50R17 95W](/static/slike/blank_150x150.jpg)
1
ponudba
Dodaj na seznam želja
![BF Goodrich celoletna pnevmatika g-Grip All Season 2, XL 175/65R14 86H](/static/slike/blank_150x150.jpg)
2
ponudbe
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons XL 245/45R17 99Y](/slike/products/28/49/11994928/thumb80_goodyear-cjelogodisnja-guma-vector-4-seasons-xl-245-45r17-99y_39ca91d1.jpeg)
2
ponudbe
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons TL 195/65HR15 91H](/slike/products/81/09/4700981/thumb80_goodyear-celoletne-gume-225-55-vr17-tl-97v-gy-vector-4seas-suv-gen-2_23d88025.jpeg)
2
ponudbe
Dodaj na seznam želja
![BF Goodrich Advantage All-Season ( 205/55 R16 91H )](/static/slike/blank_150x150.jpg)
1
ponudba
Dodaj na seznam želja
![BF Goodrich Advantage All-Season ( 205/60 R15 95H XL )](/static/slike/blank_150x150.jpg)
1
ponudba
Dodaj na seznam želja
![BF Goodrich Activan 4S ( 215/65 R16C 109/107R Dvojno oznacevanje 106T )](/static/slike/blank_150x150.jpg)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons Gen-3 SUV 225/65R17 106V](/slike/products/53/85/36258553/thumb80_goodyear-cjelogodisnja-guma-vector-4seasons-gen-3-suv-225-65r17-106v_2100d32d.jpeg)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons Gen-3 255/35R19 96Y](/slike/products/19/98/36259819/thumb80_goodyear-cjelogodisnja-guma-vector-4seasons-gen-3-255-35r19-96y_d11e8071.jpeg)
1
ponudba
Dodaj na seznam želja
![BF Goodrich Advantage SUV All-Season ( 235/50 R18 101V XL )](/slike/products/78/52/43085278/thumb80_cjelogodisnje-gume-bf-goodrich-advantage-suv-all-season-235-50-r18-101v-xl-_42dff025.png)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons 235/65R16 113R/113S/115R/115S](/slike/products/77/02/8000277/thumb80_goodyear-cjelogodisnja-guma-vector-4-seasons-235-65r16-115s_90858b16.jpeg)
8
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons 215/70R16 100T](/slike/products/07/78/4697807/thumb80_goodyear-cjelogodisnja-guma-vector-4-seasons-215-70r16-100t_f53a9779.png)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons XL SUV FP 235/50R18 101W](/slike/products/87/51/40725187/thumb80_cjelogodisnje-gume-goodyear-cjelogodisnja-guma-vector-4seasons-xl-suv-fp-235-50r18-10_13c12426.jpeg)
4
ponudbe
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons 215/60R16 103T/95V/99V](/slike/products/29/64/4696429/thumb80_goodyear-cjelogodisnja-guma-vector-4-seasons-215-60r16-95h-95v_a0bfe08f.jpeg)
13
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons Gen-3 195/55R16 91H/91V](/slike/products/85/86/36258685/thumb80_goodyear-cjelogodisnja-guma-vector-4seasons-gen-3-195-55r16-91h-91v_78277217.jpeg)
2
ponudbe
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons Gen-3 SUV 245/45R19 102W](/slike/products/96/96/36259696/thumb80_goodyear-cjelogodisnja-guma-vector-4seasons-gen-3-suv-245-45r19-102w_2100d32d.jpeg)
1
ponudba
Dodaj na seznam želja
![Tracmax Trac Saver ( 185/65 R14 86H )](/slike/products/39/34/10413439/thumb80_tracmax-trac-saver-185-65-r14-86h-cijelogodisnje-gume_5bb6c337.jpeg)
1
ponudba
Dodaj na seznam želja
![BF Goodrich Trail Terrain T/A ( 275/65 R18 116T ORWL )](/static/slike/blank_150x150.jpg)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons 225/45R18 95V/95W](/slike/products/55/77/9407755/thumb80_goodyear-cjelogodisnja-guma-vector-4-seasons-225-45r18-95v-95w_5e9f3dfa.jpeg)
2
ponudbe
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons Gen-3 245/45R19 102H/102W](/slike/products/04/86/36258604/thumb80_goodyear-cjelogodisnja-guma-vector-4seasons-gen-3-245-45r19-102w_78277217.jpeg)
2
ponudbe
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons XL TL 215/60R17 100H](/slike/products/43/14/13901443/thumb80_goodyear-cjelogodisnja-guma-vector-4-seasons-xl-tl-215-60r17-100h-100v_5f7a2c9b.jpeg)
3
ponudbe
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons Gen-3 175/65R14 86H](/slike/products/41/85/36258541/thumb80_goodyear-cjelogodisnja-guma-vector-4seasons-gen-3-175-65r14-86h_78277217.jpeg)
1
ponudba
Dodaj na seznam želja
![BF Goodrich Advantage SUV All-Season ( 215/65 R17 99V )](/slike/products/01/18/20851801/thumb80_cjelogodisnje-gume-bf-goodrich-advantage-suv-all-season-215-65-r17-99v-_42dff025.png)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons 205/75R16C 108R/110R/111R](/slike/products/85/82/7958285/thumb80_goodyear-celoletna-pnevmatika-vector-4-seasons-205-75r16c-108r_838a5ed9.png)
3
ponudbe
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons FP 215/45R17 91W](/slike/products/23/54/52255423/thumb80_cjelogodisnje-gume-goodyear-vector-4seasons-fp-215-45r17_13c12426.jpeg)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons 255/60R18 108V/112V](/slike/products/21/41/5074121/thumb80_goodyear-vector-4season-suv-g2-univerzalne-gume-215-55r18-99v-xl_15f5d552.jpeg)
3
ponudbe
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Wrangler Duratrac FP 255/55R19 111Q](/slike/products/41/54/52255441/thumb80_cjelogodisnje-gume-goodyear-wrangler-duratrac-fp-255-55r19_7ff2985a.jpeg)
1
ponudba
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons 225/55R16 99W](/slike/products/10/62/19486210/thumb80_goodyear-vector-4-seasons-225-55r16_5e9f3dfa.jpeg)
3
ponudbe
Dodaj na seznam želja
![Goodyear celoletna pnevmatika Vector 4Seasons 205/60R16 92H/96V](/slike/products/31/64/4696431/thumb80_goodyear-cjelogodisnja-guma-vector-4-seasons-205-60r16-92h-92v-96v_4337faec.jpeg)
7
ponudba
Dodaj na seznam želja
![BF Goodrich Advantage All-Season ( 225/45 R17 94Y XL )](/static/slike/blank_150x150.jpg)
1
ponudba
Dodaj na seznam želja
Proizvajalec
Alliance (48)
Michelin (466)
Aplus (156)
Milestone (52)
Apollo (44)
Minerva (256)
Aptel (1)
Momo (4)
Atlas (97)
Nankang (289)
Austone (25)
Nexen (337)
Avon (45)
Nokian (107)
Barum (98)
Nordexx (105)
BF Goodrich (274)
Novex (64)
Bridgestone (423)
Petlas (217)
Continental (554)
Pirelli (617)
Cooper (135)
Renegade (1)
Debica (43)
Riken (20)
Delinte (5)
Rotalla (158)
Dragon (1)
Sailun (67)
Dunlop (129)
Sava (117)
Falken (337)
Sebring (61)
Firestone (124)
Semperit (101)
Fortuna (98)
Sportiva (10)
Fulda (143)
Star Performer (55)
General Tire (1)
Starmaxx (4)
Goodride (78)
Taurus (5)
Goodyear (753)
Tigar (64)
Gripmax (119)
Torque (2)
Hankook (502)
Toyo (285)
Hifly (116)
Tracmax (65)
Imperial (120)
Tristar (214)
Infinity (9)
Unigrip (42)
Kleber (307)
Uniroyal (212)
Kormoran (73)
Viking (87)
Kumho (455)
Vredestein (580)
Lassa (10)
Wanli (2)
Laufenn (23)
West Lake (70)
LingLong (83)
Yokohama (319)
Matador (92)
Ni podatkov (1712)
Maxxis (240)
Širina
125 (0)
331 (0)
135 (0)
340 (0)
145 (2)
351 (0)
155 (9)
355 (0)
165 (28)
365 (0)
175 (35)
371 (0)
185 (47)
375 (0)
190 (0)
380 (0)
195 (90)
385 (2)
205 (81)
400 (0)
215 (144)
405 (0)
225 (145)
420 (0)
235 (170)
425 (1)
240 (0)
435 (1)
245 (83)
440 (0)
255 (129)
445 (2)
265 (43)
455 (0)
275 (32)
460 (0)
280 (0)
480 (0)
285 (18)
495 (0)
295 (8)
500 (0)
305 (2)
520 (0)
311 (0)
580 (0)
315 (12)
600 (0)
320 (0)
620 (0)
321 (0)
800 (0)
325 (1)
Ni podatkov (7)
Višina
Premer ®
Indeks hitrosti