CT31 50

Brand from China, 1 variant in the manufacturer’s shop.

Dimensions to scale, shape schematic

Rim depth: 50 mm; Source

Source: carbonspeedcycle.com, As of 15 Nov 2026

“Tyre of Wheels: 50x25mm (18mm inner) width Clincher/Tubeless”
Internal width: Internal width according to the shop: 18 mm.

Green: 23 mm internal width or more. Yellow: 21 to under 23 mm. Red: under 21 mm.; Source

Source: carbonspeedcycle.com, As of 15 Nov 2026

“Tyre of Wheels: 50x25mm (18mm inner) width Clincher/Tubeless”
External width: External width according to the shop: 25 mm, internal width 18 mm, so 7 mm wider outside than inside.

Rated is how much wider the rim is outside than inside. Green: at least 7 mm. Yellow: 5 to under 7 mm. Red: under 5 mm.; Source

Source: carbonspeedcycle.com, As of 15 Nov 2026

“Tyre of Wheels: 50x25mm (18mm inner) width Clincher/Tubeless”
Set weight: Expected at 50 mm depth and 18 mm internal width: 1,518 g. Stated: 1,550 g, manufacturer’s claim.

Expected from a robust regression over the manufacturer’s claims of 1,285 wheelsets by rim depth and internal width. Green: lighter than expected. Yellow: up to 10% heavier than expected. Red: more than 10% heavier. With green load capacity, 5 and 12% apply.; Source

Source: carbonspeedcycle.com, As of 15 Nov 2026

“Wheelset Weight: CT31 Center lock Thru axle Shiman0 hub wheels; 50mm Clincher Tubeless 25mm Wide 1550g+/-3%”

All values are manufacturer’s claims unless marked otherwise. “Source” shows link and date.

Rated is the max. rider weight, without it the max. system weight (rider, bike and luggage); a limit without reference counts as system weight. If the rider weight is above the system weight, the system weight counts. Green: rider from 120 kg, system from 130 kg. Yellow: rider 100 to under 120 kg, system 110 to under 130 kg. Red: below. Grey: the manufacturer states no limit.
Duties and import VAT according to the shop: included, duties paid delivery (DDP).

Green: included, so duties paid delivery (DDP), or shipped from the EU. Yellow: you pay them on import, plus at least 19% import VAT, or only the taxes are included and the duties stay open. Grey: the shop does not say clearly.
Shipping to Germany according to the shop: paid, $50.

Green: free to Germany. Yellow: paid. Grey: the shop does not say clearly.
Delivery time according to the shop: unclear.

The upper value counts, days count as business days × 5/7. Green: up to 10 business days. Yellow: 11 to 20 business days. Red: more than 20 business days.
Returns according to the shop: period unclear, you pay return shipping.

Green: 30 days or more if the shop pays return shipping. Yellow: any other period, including returns only for defects.
Valid for 1 year from purchase under normal riding. In the first 3 months CSC replaces defective parts and pays shipping, from month 4 to 12 you pay shipping. Damage from wrong brake pads, wear, crashes, impacts and misuse is excluded.

Green: 3 years or more, or lifetime. Yellow: 2 years. Red: under 2 years.
Green: the brand offers crash replacement, a discounted replacement after a crash. Red: it offers none. Grey: it does not say clearly.
According to the product page, included: spare spokes, spare nipples.

Green: wheel bags and more accessories included. Yellow: accessories such as valves, spare spokes or rim tape included, but no wheel bags. Red: the package list names only the wheels. Grey: the shop does not name what is included.

Specifications

Terms explained

CSC CT31 50, as claimed by the manufacturer: rim depth 50 mm, 18 mm internal width, 25 mm external width, 1,550 g per set, 24/24 spokes.

The manufacturer gives no figures yet for spoke material and freehub mechanism.

Load capacity

Max. rider weight: unknown
Max. system weight: unknown
UCI approval: unknown

Spokes

Count F/R: 24/24

Source

Source: carbonspeedcycle.com, As of 15 Nov 2026

“Hole: Front 24H, Rear 24H, External hole”
Material: unknown
Model: Pillar Areo 1423 (88mm only fit CSC aero AR23 spoke)

Source

Source: carbonspeedcycle.com, As of 15 Nov 2026

“Spokes: Pillar Areo 1423 (88mm only fit CSC aero AR23 spoke)”

Hub

Model: CSC CT31 hub Center Lock or 6 bolt Version (black colour)

Source

Source: carbonspeedcycle.com, As of 15 Nov 2026

“Model: CSC CT31 hub Center Lock or 6 bolt Version (black colour)”
Freehub mechanism: unknown

In the box

Included: spare spokes, spare nipples

Source

Source: carbonspeedcycle.com, As of 15 Nov 2026

“Including: | extra spokes+nipples”

Buy from CSC

CSC

Brand from China, founded 2009, 39 wheelsets.

Shipping to Germany: paid, $50
Duties and import VAT: included, duties paid delivery (DDP)
Delivery time: unclear
Ships from: unknown
Returns: period unclear, you pay return shipping
Payment methods: PayPal, Credit card
Warranty: 1 year
Crash replacement: unknown
Warranty handling: unknown

This is what the shop’s pages say, for deliveries to Germany. Sources, details and contact are on the brand page.

All about CSC All 39 wheelsets from CSC in the list

Offers

€204 $226 in the shop 1 variant lowest price

Variant	Link to the shop
Pillar Areo 1423 (88mm only fit CSC aero AR23 spoke), Standard Steel Bearing, 50x25mm (18mm inner) width Clincher/Tubeless Choose in the shop: Tyre of Wheels: 50x25mm (18mm inner) width Clincher/Tubeless	In the shop: Pillar Areo 1423 (88mm only fit CSC aero AR23 spoke), Standard Steel Bearing, 50x25mm (18mm inner) width Clincher/Tubeless

Prices from the manufacturer’s shop, as of 15 Nov 2026. Shipping comes on top: $50. Duties and import VAT are included (duties paid delivery, DDP). A final price with shipping and charges will follow.

Prices in € converted at €1 = $1.1052 as of 13 Nov 2026 (Source: ECB reference rates). The amount your bank charges can differ, depending on its rate and fees.

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Similar wheelsets from other brands

Wheelset	Depth	Internal	Weight	Price from
CSC CT31 50 this wheelset	50 mm	18 mm	1,550 g	€204
Carbonal Novatec D411 & D412 18mm Internal Width CLINCHER D18-50	50 mm	18 mm	1,470 g −80 g	€488 +€284
BladeX Core 55	55 mm	18 mm	1,706 g +156 g	€534 +€330
NEXTIE RX 45	45 mm	19 mm	approx. 1,092 g −458 g	€697 +€493
Tukus LIGHTNING R 50	50 mm	18 mm	1,230 g −320 g	€886 +€682

Selected by specs: rim depth ±5 mm, internal width ±2 mm, one wheelset per brand. Order as in the list: rating points, on a tie the price, then the smaller deviation in depth and internal width. Price from as in the list, without shipping and import charges.

Sources

Product page carbonspeedcycle.com retrieved 15 Nov 2026