DATASHEET: Hub dimensions | BikeGremlin US

Table of Contents

In a separate post I explained the important hub dimensions and how they are measured, as well as how spoke length calculator is used. Here I will just make a list of data for hubs that I have worked with – filling it up over time. For a more general info on the topic, see the post about bicycle wheel building basics. The table is sorted by manufacturers first, then by wheels (front hubs first, followed by the rear hubs). Adding a picture here for a quick reference:

Another good (and mostly reliable) source for hub dimensions is kstoerz.com – hub dimensions secton.

DT Swiss

Front DT Swiss hubs

Model	no. of spokes	A	B	C	D	S
350 – straightpull 15 mm through axle	24	28.5	36.5	22.7	35	2.5

Rear DT Swiss hubs

Model	no. of spokes	A	B	C	D	S

Quando

Front Quando hubs

Model	no. of spokes	A	B	C	D	S
6-bolt disc	36	68	68	23	30	2.8

Rear Quando hubs

Model	no. of spokes	A	B	C	D	S
6-bolt disc freehub	36	66	66	33.5	21.5	2.8

Shimano

Front Shimano hubs

Model	no. of spokes	A	B	C	D	S
DH-3D32-QR dynamo hub	36	74	74	20	28	2.6
DH-3D37-QR dynamo hub	36	74	74	20	28	2.6
DH-3N20 dynamo hub	32	74	74	29	27	2.6
DH-T8000-3D XT Disc	32	70	70	18.5	26.5	2.6
HB-7710 Dura Ace Track	36	38	38	37	37	2.5
HB-7600 Dura Ace Track	32	67	67	36	36	2.5
HB-RS300 Sora	36	38	38	33	33	2.6
Model	no. of spokes	A	B	C	D	S

Rear Shimano hubs

Model	no. of spokes	A	B	C	D	S
FH-M3050 Acera Centerlock, 135 OLD	36	45	45	33	20	2.6
FH-M4050 Alivio Centerlock, 135 OLD	32	45	45	33.5	21	2.6
FH-M4050 Alivio Centerlock, 135 OLD	36	45	45	33	19.5	2.6
FH-M475 6-bolt disc	36	61	61	34	21	2.6
FH-M8000-3D XT	32	44	45	35.3	22.1	2.6
FH-RM30 Altus	36	45	45	35	24	2.6
FH-RS300 Sora	36	45	45	35	19	2.6
HB-7710 Dura Ace Track Double thread	32	67	67	36	36	2.5
HB-7710 Dura Ace Track Double thread	36	44	44	37	30	2.5
M425	32	61	61	31.5	17	2.6
SG-3C41 Nexus	36	59	59	28	25	2.6
SG-7C15 Nexus	36	84	84	31	21	2.6
SG-8R31 Nexus	32	92.5	92.5	29.3	24.5	2.6
WH-MT15-A centerlock, 135 OLD	28	45.5	45.5	34	20	2.6
Model	no. of spokes	A	B	C	D	S

Other manufacturers

Front hubs of other manufacturers

Model	no. of spokes	A	B	C	D	S

Rear hubs of other manufacturers

Model	no. of spokes	A	B	C	D	S
Velosteel – Czech roller brake 117 mm OLD	36	52	52	30	33	2.9

Last updated:

25/04/2025

Originally published:

28/05/2020

Author

Relja Novović

Relja is an avid cyclist, a pretty good bike mechanic, and a professional computer systems administrator – with decades of experience in both those fields (computers and bikes 🙂 ). Relja Novović’s credentials and a short biography