How much extra does one need to spend to make this go the advertised 50 mph?

Yes it will do 50+ and if you get the spektrum DX5C TRANSMITTER REMOTE IT WILL GO EVEN FASTER. ALONG WITH SOME GEAR AND SHAFT UPRGRADES MINE DOES 68-71MPH

Can it handle 100c Lipo ?

Using a battery that sustains the current demand of the motor is what is required, regardless of the C rating. Typically 5000mAh and 25C for vehicles this size are more than adequate. The difference between two 5000mAh batteries, one rated 25C and the other 100C would likely be unnoticeable as either would have the ability to deliver sufficient current. Higher quality cells from a reputable manufacturer would be a greater benefit than running the highest C rating that you can find.

Will both the 21t and 26t pinion gears for all the arrma 3s blx vehicles (models) fit?

Yes. Just keep an eye on temps. I think Arrma used a 20t to optimize speed and reliability.

What batteries and charger so I need for this? Also will I need anything else?

3s smart lipo + charger is advised. They can be pricy so I use a 2s smart battery and charger instead, and it still goes over 40 mph just fine. Also, the car has an ic5 battery connecter. Be sure to check whether or not the battery you buy has an ic5 or not. If not, you can get an adapter for a few dollars. After you have a battery and charger, you will be good to go.

Arrma 1 10 Senton 4x4 V3 3s Blx Brushless Short

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Description

🚀 Dominate Every Terrain with the ARRMA Senton 4X4 V3 – Ready, Set, Bash!

UNLEASH EXTREME SPEED ⚡ - 3S brushless motor delivers thrilling bashing speeds for adrenaline-fueled runs.
PRECISION CONTROL INCLUDED 📡 - Comes with Spektrum SLT3 transmitter and SLR300 receiver for seamless, responsive handling right out of the box.
BUILT TO CONQUER TERRAIN 🛠️ - Durable chassis with rubber shielded bearings and stone-clearance steering for unstoppable off-road performance.
RTR CONVENIENCE BATTERIES PENDING 🔋 - Fully assembled and ready to run—just add batteries and charger to join the elite RC community instantly.
CUSTOMIZABLE RIDE HEIGHT EASY MAINTENANCE 🔧 - Adjustable body mounts and ride height let you fine-tune performance and access components effortlessly.

The ARRMA 1/10 SENTON 4X4 V3 3S BLX is a rugged, ready-to-run short course truck designed for both beginners and seasoned RC enthusiasts. Featuring a powerful 3S brushless motor, reinforced chassis with advanced bearings, and the latest Spektrum SLT3 transmitter system, it offers high-speed thrills and exceptional durability. Adjustable ride height and body mounts ensure easy customization and maintenance, making it the ultimate all-terrain bashing machine that’s built to last and impress.

Specifications

ASIN	B08FCV42FN
Additional Features	Adjustable, Portable
Age Range Description	Big Kid
Are Batteries Required	Yes
Batteries are Included	No
Battery Description	Lithium-Ion Polymer
Best Sellers Rank	#263,013 in Toys ( See Top 100 in Toys ) #372 in Remote- & App-Controlled Trucks
Brand Name	ARRMA
Color	Red
Customer Package Type	Standard Packaging
Customer Reviews	4.5 4.5 out of 5 stars (305)
Included Components	(1) ARRMA® SENTON™ 4X4 3S BLX 1/10 Scale 4WD Electric Short Course Truck RTR (1) BLX100 2S/3S Waterproof* ESC (1) Spektrum™ Firma™ 3660 3200Kv Brushless Motor (1) Spektrum™ 2.4GHz SLT3™ 3-Channel Transmitter (1) Spektrum™ SLR300 Receiver (1) Spektrum™ SPMS651 Waterproof* Metal-Geared Digital Servo (1) Product Manual
Is Assembly Required	Yes
Item Dimensions	55.8 x 30.5 x 21 centimeters
Item Type Name	RC Truck
Item Weight	2.74 kg
Manufacturer	ARRMA
Manufacturer Maximum Age (MONTHS)	1188.0
Manufacturer Minimum Age (MONTHS)	168.0
Manufacturer Part Number	ARA4303V3T2
Material Type	Plastic
Model Name	ARRMA 1/10 SENTON 4X4 V3 3S BLX Brushless Short Course Truck RTR
Model Number	ARA4303V3T2
Model Year	2020
Number of Items	1
Operation Mode	Crank
Power Source	Battery Powered
Scale	1899-12-31T01:10:00.000Z
Subject Character	Monster
Theme	truck
Toy Vehicle Form	Truck

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ARRMA 1/10 SENTON 4X4 V3 3S BLX Brushless Short Course Truck RTR (Transmitter and Receiver Included, Batteries and Charger Required), Red, ARA4303V3T2

Description

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