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DT Swiss 240 EXP Boost front 110mm, Centrelock spoke length

J-bend, 28, 32 hole. Flange diameter 44.4 mm left and 44.4 mm right, centre to flange 27.6 mm left and 41.2 mm right. Pick your rim in the calculator for your exact spoke lengths.

Rim

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

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

How to measure ERD yourself
gapspoke + nipple,screwed on flushERD = spoke + spoke+ gap

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

J-bend. Flange diameter 44.4 / 44.4 mm, centre to flange 27.6 / 41.2 mm (left / right).

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

Lacing

Crosses, left (disc side)

Crosses, right

I've started you on 3-cross for 28 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.

Left sideRight side
Spokes

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

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

Spoke lengths

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

Front wheel, 28 hole, J-bend spokes, 591 mm ERD.

SideSpokesLength
Left (disc side)3-cross14292 mm291.7 worked out
Right3-cross14293 mm292.6 worked out

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

Tension: the right spokes run at 80% of the left side's tension. Bracing angles 6.0° left, 7.5° right.

Weight: these spokes and alloy nipples come to about 183 g (about 201 g with brass nipples).

Have me build this wheel

Order these spokes from me

28 spokes and nipples, about £37.80 before postage. I'll email you to confirm the price and postage before you pay anything.

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Will my spokes fit?
Ping tuner: what each side should sound like
C5, about 518 Hz at 110 kgf
A#4, about 463 Hz at 88 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

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.

DT Swiss 240 EXP Boost front 110mm, Centrelock with common rims

J-bend lengths include the bend. Rounded to the nearest mm.
HolesLeftRightLacing
Nextie Alpha 36S 29"28292 mm293 mm3-cross
Nextie Omega 36U 29"28293 mm294 mm3-cross
Nextie Omega 36 29"28293 mm294 mm3-cross
Nextie Omega 40 29"28293 mm294 mm3-cross
Nextie Omega 40D 29"28293 mm294 mm3-cross
Nextie Omega 40-27 27.5"28298 mm298 mm3-cross
Nextie Omega 40D-27 27.5"28298 mm298 mm3-cross
Nextie Unicorn 32" 32"28328 mm329 mm3-cross
Nextie Unicorn 36" 36"28366 mm368 mm3-cross
Nextie Alpha 32" 32"28321 mm323 mm3-cross
DT Swiss XM 481 29"28296 mm298 mm3-cross
DT Swiss EX 511 29"28296 mm298 mm3-cross
Hope Fortus 30 29"32289 mm290 mm3-cross
Stan's Flow MK3 29"32295 mm296 mm3-cross
WTB HTZ i30 29"32295 mm296 mm3-cross
Race Face ARC Offset 30 29"28296 mm297 mm3-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
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