Which frame does it fit?

A SPEEDHUB fits almost any frame — the only question is which version. Three things decide: the frame’s dropout width, the shape of the dropouts and the brake mount.

The basics

• Dropout width: 135 mm (CC, TS), 142 and 148 mm (A12), 170 and 177 mm (XL), 190 and 197 mm (XXL). So a 130 mm road frame will not do, while a 135 mm one will.
• Flat contact on the left: on the inside of the left dropout there must be a flat area 40 mm in diameter around the axle for the axle plate — with no weld seam or other part sticking in.
• A brake mount on the frame: the SPEEDHUB has no brake, so the frame needs a disc or rim brake mount.

Which axle comes with which dropout width is shown in the table in Variants.

Frame types and the version that fits

Dropout	Version	Chain tension
Horizontal, slot shorter than 25 mm	TS (threaded axle) with the long torque arm	chain tensioner needed
Horizontal, slot longer than 25 mm	TS with the long torque arm	in the dropout (TS EX with cables along the seat stay: at most 20 mm)
Vertical	CC (quick release) — in and out without tools; TS also possible	chain tensioner, or an eccentric bottom bracket
Vertical, with an IS disc mount	OEM2 axle plate — or the long torque arm	chain tensioner, or an eccentric bottom bracket
Four-bar (Horst Link)	OEM, OEM2 or PM axle plate only	chain tensioner
Sliding Rohloff OEM dropout (hardtail)	OEM axle plate	by sliding the dropout — no tensioner needed
Rohloff OEM dropout, full suspension	OEM axle plate	chain tensioner
Direct Post Mount brake mount	PM axle plate with a PM Bone	chain tensioner, or an eccentric bottom bracket

Horizontal dropouts take TS only

With a quick release (CC) the axle is not held securely in a horizontal dropout — the wheel can pull crooked. Here it is always the threaded-axle TS version.

OEM2: the disc mount as the support

With OEM2, the torque is taken up by the frame’s IS disc brake tabs. That comes with strict conditions:

• the tabs are one piece with the dropout, follow the IS standard, and dropout and tabs are at least 6 mm thick;
• with a support bolt, the rear tab must sit behind the vertical through the axle centre — if it is in front, this solution is not allowed;
• an OEM2 axle plate may not be used with a disc mount on the chainstay;
• OEM2 mounting needs the frame maker’s approval; without it, it is at your own risk.

The details — support bolt, SPEEDBONE, MonkeyBone, PM Bone — are in Torque support.

If it does not fit

The axle type (CC, TS or A12) can only be changed by Rohloff, as part of a paid factory overhaul, not in a workshop. Exactly which version your frame needs is what a check tells you: The check before a conversion.