B45 AT13S Premium Birch Bat

B45SKU: AT13s-PRS-31

Color: Black/Grey
Size: 31"
Price:
Sale price$99.99
Stock:
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The premium birch baseball bat is a sophisticated choice for those seeking performance and durability. The B45 AT13S Premium Birch Bat stands out with its balanced design and is expertly handcrafted from premium yellow birch, known for its flexibility and strength. It includes a significant 30-day warranty from B45, ensuring your purchase is protected.

This bat features a flared knob, providing better control and comfort during swings. The handle measures 0.95 inches in diameter, while the barrel, which is ink dot tested to showcase its fine quality, measures 2.42 inches and is described as small, offering a more compact and smooth swing. With a weight ratio of -3, it is perfectly balanced for an optimal playing experience.

The premium birch baseball bat's aesthetic appeal is enhanced by its classic color scheme, featuring a black handle, natural barrel, and a distinctive black B45 sticker. This combination not only ensures the bat looks good but also performs excellently during play.

FAQ

Q: What type of balance does this bat have? A: The bat is designed to be balanced, catering to players who appreciate a smooth, controlled swing.

Q: Does the bat come with any warranty? A: Yes, it comes with a 30-day warranty included from B45.

Q: What is ink dot testing? A: Ink dot testing is a method used to show the wood grain quality and its slope, ensuring the bat's durability and performance quality.

High School & College
BBCOR Bats
All BBCOR bats are -3 drop. The goal is finding the longest bat you can still swing with full speed. When in doubt, go shorter.
Height Weight Length Notes
Under 5'4" Under 140 lbs 29"–30" Prioritize bat speed
5'4"–5'7" 140–160 lbs 30"–31" Common for HS freshmen
5'7"–5'10" 160–185 lbs 31"–32" Most common Most Common
5'10"–6'1" 185–210 lbs 32"–33" Upperclassmen Most Common
6'1"–6'4" 210–225 lbs 33"–33.5" Max for most HS players
6'4"+ 225+ lbs 33.5"–34" Proven bat speed required
Our Take on 34" BatsWe almost never put a high school player in a 34". Unless you are 6'4" and 225 lbs or bigger with proven bat speed, a 33" will serve you better. Most HS players swinging a 34" are giving up exit velocity without knowing it. Come in and we will put you on both in the cage.
BTL TipWhen in doubt, go shorter. Bat speed wins every time. Come swing both lengths in our demo cage and you will know in 10 swings.

Travel Ball
USSSA Bats
Travel ball and competitive youth leagues through 13U. Drop weight is tied to age. Confirm with your league rules before buying.
Age Height Length Drop
7–8 Under 4' 26"–27" -10, -11
9 4'0"–4'3" 27"–28" -10
10–11 4'3"–4'8" 28"–29" -10 Most Common
12 4'8"–5'2" 29"–30" -8
13 5'0"–5'7" 30"–31" -5
BTL TipMost 13 year olds playing travel ball are on a -5. That is the right stepping stone before the jump to BBCOR. If your player is heading into 9th grade, get comfortable with the heavier drop now so the transition is not a shock.

Little League & Rec Ball
USA Bats
USA Baseball is a different certification standard than USSSA. Required in Little League, Cal Ripken, Babe Ruth, and most rec leagues. A USSSA bat is not legal in a USA league and vice versa. Always check your league requirements before buying.
Age Height Length Drop
4–6 Under 3'8" 24"–25" -11, -12
7–8 3'8"–4'0" 25"–27" -10, -11
9–10 4'0"–4'5" 27"–28" -10
11–12 4'5"–4'9" 28"–30" -8, -10 Most Common
13+ 4'9"+ 30"–31" -8

Summer Tournaments & Training
Wood Bats
All wood bats we carry are -3 drop. Sizing follows the same principles as BBCOR. Wood punishes poor bat speed more than any other type — when in doubt, go shorter.
Height Weight Length Notes
Under 5'4" Under 140 lbs 29"–30" Builds better contact habits
5'4"–5'7" 140–160 lbs 30"–31" Good starting point for wood
5'7"–5'10" 160–185 lbs 31"–32" Most common Most Common
5'10"–6'1" 185–210 lbs 32"–33" Strong players Most Common
6'1"–6'4" 210–225 lbs 33"–33.5" Max for most HS players
6'4"+ 225+ lbs 33.5"–34" Proven bat speed required
BTL TipIf you are playing travel or high school ball in Arizona, you are going to need a wood bat. Most summer tournaments around here are wood bat only. Wood is also the best training tool in the game — the sweet spot is smaller and mishits are unforgiving, which forces you to be more precise with the barrel and build better mechanics over time.

Understanding Drop Weight
Drop weight is the difference between a bat's length in inches and its weight in ounces. A 32" bat with a -3 drop weighs 29 oz.
-3Heaviest
14U, HS & CollegeBBCOR and wood. Required at 14U and above.
-5Heavy
13U / Advanced 12UStandard for 13U. Strong 12U players may move here early.
-8Moderate
12UDevelops power without losing too much bat speed.
-10Light
10U–11UMost common youth drop. Most Common
-11/-12Lightest
8U and UnderTee ball and beginners.

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