
Flat Boat Trailer Rollers for Flat Bottom Boats
Stoltz flat bow rollers are polyurethane flat boat trailer rollers for boats with a completely flat bow, including flat bottom boats. Flat rollers come in 1 1/2″ and 3″ sizes, and the 3″ is also sold as a kit with flat end caps. To check the fit, measure the inside width of your bow roller bracket.
Please click on product for EXACT measurements.
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3″ Boat Trailer Roller Flat With Flat End Cap – RP333-325 Stoltz
Original price was: $39.99.$35.99Current price is: $35.99. Add to cart -
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3″ Flat Boat Trailer Roller – RP-333 Stoltz
Original price was: $19.99.$17.99Current price is: $17.99. Add to cart -
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Flat Boat Trailer Roller – RP-31 Stoltz
Original price was: $16.99.$13.99Current price is: $13.99. Add to cart
Is a flat roller right for your boat?
Match the roller to the shape of your bow. A flat roller fits a bow that is completely flat. If your bow has a slight curve, use a semi V roller. If it is aluminum with a wide ridge, or fiberglass with a keel strip, use a slotted V roller. If it is fiberglass with a pointy, deep V bow, use a deep V roller.
Flat roller sizes
| Inside bracket width | Roller | Model | Actual roller width | Bolt |
|---|---|---|---|---|
| 1 1/2″ | 1 1/2″ flat | RP-31 | 1 1/2″ | 1/2″ |
| 3″ | 3″ flat | RP-333 | 2 7/8″ | 1/2″ |
How to measure
Measure the inside width of your bow roller bracket. The 1 1/2″ flat roller fits a 1 1/2″ bracket, and the 3″ flat roller fits a 3″ bracket. All Stoltz bow rollers use a 1/2″ bolt.
End caps for flat rollers
Flat rollers come with flat end caps only. End caps mount on the outside of the bracket on the same 1/2″ bolt as the roller.
Flat roller FAQ
What roller do I need for a flat bottom boat?
A flat bow roller. It fits a bow that is completely flat, which is common on flat bottom boats.
What sizes do Stoltz flat rollers come in?
1 1/2″ (RP-31), which fits a 1 1/2″ bracket and is a full 1 1/2″ wide, and 3″ (RP-333), which fits a 3″ bracket and is 2 7/8″ wide.
Do flat rollers come with bell end caps?
No. Flat rollers come with flat end caps only.
Can I buy just the roller?
Yes. Both sizes are sold as single rollers (RP-31 and RP-333). The 3″ is also sold as a kit with flat end caps (RP325-333).
Do you ship outside the U.S.?
No. Boat Trailer Rollers ships within the United States only.






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