23.8 C
Réunion
7 décembre 2022
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BMXDisciplineMécaniquePiste et CircuitRouteTransmissionVélos Electriques VAE (eBike)VTT

Mesurer la distance entre les vis de couronne VTT, BMX et Route

Voici un tableau des différentes tailles d’entraxes pour les couronnes

Pédalier / Couronnes 4-branches, espace égal

For uneven spacings, see the next section of this table.
Beware of near-matches! Measure!
The BCD is 1.414, 1/sin 45°, times the spacing between adjacent holes.

BCD (mm) Smallest
Ring
Between adjacent holes
(mm)
Application
146 44 103.2 Shimano XTR M960 Hollowtech 4-arm outer.
120 36 84.9 SRAM 2 x 10 and XX. Threaded.
112 34 79.2 Shimano XTR M950, M952 4-arm middle/outer
110 34 77.8 FSA K-Force Light, Vero Pro
104 30 73.5 Shimano XT, LX 4-arm outer 12 SPD, Sugino MX350. Some are threaded. See RaceFace compatibility table.
102 32 72.1 Shimano 2003 XTR MX960 4-arm middle,
96 30 67.9 Shimano compact triple cranksets models M782, M672, M622, M612
94 30 66.5 SRAM XO1, X1, GX, NX
90 30 63.6 FSA: K-Force Modular Supercompact, Omega Pro, Powerbox Supercompact Stealth, Road Modular, Vero Pro
88 28 62.2 Shimano M985
68 22 48.1 Shimano XTR M950, M952 4-arm inner, FSA Comet Modular
64 22 45.3 Shimano XTR M960, XT, LX 4-arm inner. See RaceFace compatibility table.
58 20 41.0 Sugino MX350 4-arm inner

Pédalier / Couronnes 4 branches, espace inégal

Measurements between adjacent holes of uneven patterns
are adjusted to nearest whole degree of angle between bolt holes,
reflecting probable correct values.
The first number given is for holes either side of the crank.
If there are three spacings, the last and smallest is for holes opposite the crank.

BCD (mm) Smallest
Ring
Between adjacent holes
(mm)
Application
145 44 111.1, 93.2 Campagnolo Super Record, Record, Chorus 2015- outer
123 38 ?, ? Campagnolo Chorus, Ekar
112 34 85.8, 72.0 Campagnolo Super Record, Record, Chorus 2015- inner
110 34 90.1, 63.1 Shimano Dura Ace 9000, Ultegra 6800, 105 5800, Tiagra 4703, 4700; Dura Ace with modification
110 34 89.0, 64.7 SRAM Apex 1. 72/108 degree angles. Shimano is 70, 110 degrees.
110 34 84.3, 77.8, 70.7 FSA Gossamer ABS, K-Force ABS, Powerbox, SL-K ABS
107 34 (?) 86.6, 62.9 SRAM X-Sync
100 32 92.7, 64.3, 58.8 3T Torno. Must use 3T bolts. Looks like a 5-bolt pattern with one bolt missing.
96 30 78.6, 55.1 Shimano XT M8000, SLX M7000, Deore M6000, 10mm holes; XTR M9000 and M9020, M7 threaded holes.
96 36 73.5, 67.9, 61.7 FSA 96/68 SLK MTB ABS
76 26 65.8, 48.9 FSA Afterburner, Comet, K-Korce, SLK MTB ABS
76 25 62.3, 53.7, 48.9 SRAM XX1 11-speed, Cannondale, Specialized Stout. Threaded for M8 bolts.
68 22 52.1, 48.1, 43.7 FSA Comet MTB Modular, Comet triple, K-Force Modular, SL-K MTB Modular, V-Drive MTB Modular
64 22 52.4, 36.7 Shimano XT, SLX, XTR 11-speed with the « X » shaped bolt pattern.

5-Bolt Cranks/Chainwheels:
The BCD is:
1.701, 1/sin 36°, times the spacing between adjacent holes,
1.052 , 1/sin 72°, times the spacing between non-adjacent holes.

BCD (mm) Smallest
Ring
Between adjacent holes
(mm)
Between non-adjacent holes (mm) Application
151 44 88.8 143.6 Very old Campagnolo standard (pre ’67) (Obsolete)
144 41 84.6 137.0 Old Campagnolo standard, still used for track; Sturmey-Archer FCT
135 39 79.4 128.4 Current Campagnolo standard
130 38 76.4 123.6 Standard Road double and triple (outer 2); Sturmey-Archer FCS
128 38 75.2 121.7 Nervar Sport, Star (Obsolete)
122 38 71.7 116.0 Stronglight 93, 101, 103, 104, 105 (Obsolete)
118 36 69.4 112.2 Ofmega, SR (Obsolete)
116 35 68.2 110.3 Old Campagnolo Gran Sport touring, Victory, Triomphe
110, 112 34 64.7, 65.2 104.6, 105.6 Campagnolo CT inner/middle/outer with one bolt at larger diameter behind crank
110 38 77.8, 70.7, 46.5 FSA K-Force ABS: uneven pattern, 4 bolt with extra bolt behind crank
110 33 64.7 104.6 Touring double, standard triple outer
102 32 60.0 97.0 Avocet triple inner (obsolete). Note, NOT same as Campagnolo.
100 31; 36 58.8 95.1 Merz adapter; Campagnolo triple inner (Obsolete)
94 29 55.3 89.4 Compact triple outer
93 28 58.5, 52.7, 55.3,
54.0, 52.7
Wolf Tooth « CAMO », barely noticeable uneven spacing, requires Wolf Tooth spider and bolts.
92 30 54.1 87.5 Shimano Dura-Ace triple inner
90 30 52.9 85.6 Edco, Mavic triple inner (old)
86 28 50.5 81.8 Stronglight 80, 99, 100, SR Apex (Obsolete). Chainwheels must be installed back to back, triple shifts poorly.
85 28 50.0 80.8 Old Shimano Deore, Takagi triple inner. (Obsolete)
80 26 47.0 76.1 Tevano (TA Campagnolo clone) triple inner. Bolts not interchangeable with others.
74 24 43.5 70.4 Standard (« full-sized ») triple inner, used with 110 mm, 130 mm or 135 mm outer.
58 20 34.1 55.2 Compact granny
56 20 32.9 53.3 Sun Tour Compact granny (Obsolete)
50.4 n/a 29.6 47.9 TA Cyclotouriste, Criterium, Lambert, Shimano Deore, others: attachment for outer chainring; 7 mm holes.

BCD : Bolt Circle Diameter, ou encore Diamètre du Cercle entre les Vis

C-C : Distance entre 2 vis

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