Monster Cross E 45

Brand from China · 1 variant in the manufacturer’s shop

Dimensions to scale, shape schematic

Rim depth: 45 mm; Manufacturer’s claim

Source: btlos.com · As of 19 Oct 2026

“Depth: 45mm”
Internal width: Internal width according to the shop: 25 mm.

Green: 23 mm internal width or more. Yellow: 21 to under 23 mm. Red: under 21 mm.; Manufacturer’s claim

Source: btlos.com · As of 19 Oct 2026

“Inner Width: 25mm”
External width: External width according to the shop: 36 mm, internal width 25 mm, so 11 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.; Manufacturer’s claim

Source: btlos.com · As of 19 Oct 2026

“External Width: 36mm”
Set weight: Expected at 45 mm depth and 25 mm internal width: 1,269 g. Stated: 1,386 g, manufacturer’s claim.

Expected from a robust regression over 1,075 wheelsets by rim depth and internal width. With green load capacity: green up to 5% heavier than expected. Yellow: up to 12% heavier. Red: more than 12% heavier.

± 25 g; Manufacturer’s claim

Source: btlos.com · As of 19 Oct 2026

“Weight: 1386+/-25g (With Extralight Rims, Carbon Spoke Hub & Carbon Spoke)”

Max. rider weight according to the manufacturer: 120 kg.

Rated is the max. rider weight, without it the max. system weight (rider, bike and luggage); a limit without reference counts as system weight. 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: free.

Green: free to Germany. Yellow: paid. Grey: the shop does not say clearly.
Delivery time according to the shop: 7 to 12 business days.

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: 30 days, you pay return shipping.

Green: 30 days or more if the shop pays return shipping. Yellow: 14 days or more. Red: under 14 days or no returns.
Premium series 3.5 years, Standard series 1.5 years from purchase, original owners with proof of purchase only. Not covered: crashes, impacts, wrong installation, too high tyre pressure or spoke tension, wear and cosmetics.

Green: 3 years or more, or lifetime. Yellow: 2 years. Red: under 2 years.
25% discount on the replacement after a crash, up to 2 years after purchase in the Standard series and up to 4 years in the Premium series, original purchasers only. You pay shipping.

Green: the brand offers crash replacement, a discounted replacement after a crash. Red: it offers none. Grey: it does not say clearly.
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

BTLOS Monster Cross E 45, as claimed by the manufacturer: rim depth 45 mm, 25 mm internal width, 36 mm external width, 1,386 g per set.

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

Load capacity

Max. rider weight: 120 kg

Manufacturer’s claim

Source: btlos.com · As of 19 Oct 2026

“Max Rider Weight: 120kgs”
Max. system weight: unknown
UCI approval: unknown

Spokes

Count F/R: unknown
Material: unknown
Model: unknown

Hub

Model: unknown
Freehub mechanism: unknown

In the box

Included: unknown

Buy from BTLOS

BTLOS

Brand from China · 88 wheelsets

Shipping to Germany: free
Duties and import VAT: included, duties paid delivery (DDP)
Delivery time: 7 to 12 business days
Ships from: unknown
Returns: 30 days, you pay return shipping
Payment methods: PayPal, Credit card, Bank transfer
Warranty: 1 year
Crash replacement: yes
Warranty handling: unclear

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

All about BTLOS All 88 wheelsets from BTLOS in the list

Offers

€669 $750 in the shop 1 variant lowest price

Variant	Link to the shop
Premium · BTLOS GravelXpert · Default · Shimano HG (road) · Center Lock ( Disc ) · Straight pull · Sapim Race	In the shop: Premium · BTLOS GravelXpert · Default · Shimano HG (road) · Center Lock ( Disc ) · Straight pull · Sapim Race

Prices from the manufacturer’s shop, as of 19 Oct 2026. Free shipping. Duties and import VAT are included (duties paid delivery, DDP).

Prices in € converted at €1 = $1.1225 as of 19 Oct 2026 (Source: ECB reference rates). The amount your bank charges can differ, depending on its rate and fees.

Similar wheelsets from other brands

Wheelset	Depth	Internal	Weight	Price from
BTLOS Monster Cross E 45 this model	45 mm	25 mm	1,386 g	€669
Nepest NOVA 45	45 mm	23 mm	1,220 g −166 g	€1,363 +€694
Elitewheels Drive II 50	50 mm	23 mm	1,300 g −86 g	€1,158 +€489
UPVINE Ultra 40	40 mm	23 mm	950 g −436 g	€1,683 +€1,014
8LIEN AETHER 45	45/50 mm	25 mm	1,040 g −346 g	€1,523 +€854

Selected by specs: rim depth ±5 mm, internal width ±2 mm, one model 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 btlos.com retrieved 19 Oct 2026