Hope Pro 5 SP rear 142mm (straight pull) spoke length

Straight pull, 24 hole. Flange diameter 46 mm left and 61 mm right, centre to flange 31.5 mm left and 17.5 mm right. Spoke offset 2.3 mm left, 2 mm right. Pick your rim in the calculator for your exact spoke lengths.

Rim

Choose the rim

ERD 591 mm, made in 24, 28 hole. Asymmetric: the spoke holes sit 3 mm off centre, allowed for in the lengths.

Washers under the nipples (optional), mm thick

Some alloy rims use them. Leave empty if you don't.

How to measure ERD yourself

Take two spokes of a known length and screw a nipple onto each until the thread end is flush with the top of the nipple. Drop them through opposite spoke holes so the nipples sit in the rim as they would in a built wheel. Pull them tight towards each other and measure the gap between the bent ends. ERD is the gap plus both spoke lengths.

Hub

Search hubs (optional)

Choose the hub (39 fit this rim)

Straight pull. Flange diameter 46 / 61 mm, centre to flange 31.5 / 17.5 mm, spoke offset 2.3 / 2 mm (left / right).

Hub not listed? Choose "Type in my hub", or tell me which one and I'll add it.

Lacing

Spoke holes

Crosses, left (disc side)

Crosses, right (drive side)

I've started you on 2-cross for 24 hole, which suits most wheels. Radial is only for a side that doesn't brake or drive: a rim-brake front, or the non-drive side of a rim-brake rear.

SpokesSpoke type

Used for the stretch, the weight and the ping note.

Tension, tighter side, kgf

Most wheels 100 to 130. Check your rim's limit.

Spokes come in

Allow for spoke stretch (spokes stretch a little once they're tight, thin ones most)

Spoke lengths

Check your rim and hub against the maker's sizes before you order spokes.

Rear wheel, 24 hole, straight-pull spokes, 591 mm ERD.

Side	Spokes	Length
Left (disc side)2-cross	12	288 mm288.4 worked out
Right (drive side)2-cross	12	284 mm284.2 worked out

Rounded to the nearest mm. Between two sizes, go for the shorter one.

Tension: the left spokes run at 73% of the right side's tension. Bracing angles 5.7° left, 4.1° right.

Weight: these spokes and alloy nipples come to about 154 g (about 170 g with brass nipples).

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Will my spokes fit?

Left (disc side): spokes I have, mm

Right (drive side): spokes I have, mm

Nipple length

Ping tuner: what each side should sound like

G#4, about 416 Hz at 80 kgf

C5, about 522 Hz at 110 kgf

Pluck each spoke between the rim and where it last crosses another, and match the note. Every spoke on one side should sound the same. It's a guide to even tension by ear, not a tension meter.

Often needed with this wheel

A Garbaruk cassette
Lightweight 10-52 and 10-44 options for XD, MicroSpline and HG freehubs.
Nextie tubeless tape and valves
Ready for the tyre when the wheel is built.

These lengths come from the makers' published sizes and a standard sum. Rims and hubs vary from batch to batch, and sizes you put in yourself are only as good as your measuring. Travers Bikes takes no responsibility for spoke lengths worked out with this calculator, or for spokes, wheels or parts bought or built using them.

Hope Pro 5 SP rear 142mm (straight pull) with common rims

Straight-pull lengths include the hub maker's spoke offset. Rounded to the nearest mm.
	Holes	Left	Right	Lacing
Nextie Ripple 60GS 700c	24	253 mm	248 mm	2-cross
Nextie Alpha 45G 700c	24	267 mm	262 mm	2-cross
Nextie Alpha 55G 700c	24	257 mm	252 mm	2-cross
Nextie Ocean 45G 700c	24	268 mm	264 mm	2-cross
Nextie SGV 39 700c	24	274 mm	270 mm	2-cross
Nextie SGV 44 700c	24	269 mm	265 mm	2-cross
Nextie SGV 49 700c	24	264 mm	260 mm	2-cross
Nextie SGV 54 700c	24	260 mm	255 mm	2-cross
Nextie SGV 59 700c	24	255 mm	250 mm	2-cross
Nextie SGV 64 700c	24	250 mm	245 mm	2-cross
DT Swiss RR 421 700c	24	294 mm	289 mm	2-cross
DT Swiss G 540 700c	24	289 mm	285 mm	2-cross
Velocity Aileron 700c	24	285 mm	281 mm	2-cross

Back to the spoke length calculator for how it works and how to measure your own parts.

A pair of Nextie carbon wheels built at Travers Bikes

Want me to build it?

I hand-build wheels in Rochford with Nextie carbon rims and Hope, DT Swiss, Chris King, Shimano, Nextie and SON hubs. I work out the spokes and order them, so getting the length right is my job, not yours.

Price a wheel build