Would this work for a ktm 690 enduro r?

It will work in the 690R and it would be unlikely to create any problems, HOWEVER.... KTM specs the 10w60 for that engine so in theory they have designed the oil flow for the slightly thicker oil at high temperatures (i.e. the '60' vs the '50' in the designation). Without getting into the technical details, the 10w60 oil has about 30% more viscosity at VERY high temperatures, say 100 degrees C, than the 10w50. If you ride for prolonged periods at high speed, in high temp environments, or at prolonged low speed where the bike is prone to boiling over then it is very likely that paying the extra $5 for the 10w60 as the KTM engineers intended is worth it. If it was my expensive bike I would spend the extra $5 anyway. Here is the link to the same oil in the 10w60 variant: https://www.amazon.com/dp/B00JAHDIBC/ref=psdc_15719391_t2_B001GMAKZ6

Will this work for a 21 Husqvarana fc450?

yes it will i use it on my 2020 husqvarana fc450

For ktm sx250f 2019 I should bay 10w50 or 10w60 ???

Depends on the temp were you are riding and tour riding style. Refer to owners manual

Is this a 4 liter bottle?

I don't think that one is. Most 4 liter have a red picture and a screw top and most sellers indicate 4 liter

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Cross Power 4T Oil - 10W50-4L. 171-401-400

Product ID: 626816584

Details

Brand
Motorex
Liquid volume
4 Liters
Package information
Drum
SAE J300 Viscosity Grade
10W-50
Vehicle service type
motorbike

🔥JASO MA2 wet clutch approved

❄️Extreme temp & shear stability

🛡️Optimum wear protection

€ 324.71

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Description

🏁 Dominate Every Ride with Cross Power 4T – The Racer’s Secret Weapon

CLUTCH CONFIDENCE - JASO MA2 approval ensures seamless high-torque wet clutch performance
ENGINE LONGEVITY BOOST - Advanced wear protection extends engine life and reliability
THERMAL SHEAR STABILITY - Maintains viscosity and protection under extreme temperature swings
RACE READY SYNTHETIC POWER - Fully synthetic PAO & Ester base engineered for off-road dominance
UNIVERSAL FIT PRO PERFORMANCE - Compatible with most 4-stroke motorbikes, trusted by racers worldwide

Cross Power 4T Oil 10W50 is a fully synthetic, PAO and Ester-based high-performance engine oil designed specifically for off-road racing motorcycles. It features JASO MA2 certification for wet clutch compatibility, exceptional thermal and shear stability, and optimum wear protection, ensuring peak engine performance and durability under extreme conditions.

Specifications

ASIN	B001GMAKZ6
Automotive Fit Type	Universal Fit
Best Sellers Rank	#69,251 in Automotive ( See Top 100 in Automotive ) #734 in Automotive Oils
Brand Name	Motorex
Compatible with Vehicle Type	motorbike
Container Type	Drum
Customer Reviews	4.8 4.8 out of 5 stars (939)
Global Trade Identification Number	07611197017523
Included Components	MOTOREX - Cross Power 4T 10W50 Synthetic - 4L (102257)
Item Type Name	Automotive Parts & Accessories
Liquid Volume	4 Liters
Manufacturer	MOTOREX
Manufacturer Part Number	82.40302
Model Number	82.403020
SAE J300 Viscosity Grade	10W-50
UPC	604633136442
Unit Count	135.3 Fluid Ounces

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€ 324.71

Duties & taxes included

In stock

Sold byAmazon SpainDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Spain.

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Join PRO →

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TrustScore 4.5 | 7,300+ reviews

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