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LT RD301-D
Frame

LT RD301-D

Long TengLong Teng
Weight1350g
Year2024
CategoryFrame

The LT RD301-D is a well-regarded all-road carbon frame from Chinese OEM Longteng, offering wide tire clearance, a threaded T47 bottom bracket, and internal storage at a competitive price. Build quality is generally praised, but buyers frequently report missing accessories and minor issues with the storage cover and thru-axle lengths.

Pros

  • Frame was easy to build; no facing or drilling required, everything true and aligned.1
  • Threaded T47 bottom bracket for easy maintenance and stiffness.12
  • Wide tire clearance up to 38mm (some fit 40mm) for all-road/light gravel use.2
  • Lightweight frame (970-1160g) for the price.2
  • Internal downtube storage for tools/tubes.12
  • Good value for the price ($450-530 for frame/fork/seatpost).2
  • Custom paint options available at reasonable cost.2
  • Comfortable and stable ride with neutral handling.2
  • Good acceleration and stiffness, especially from BB area.2

Cons

  • Missing accessories on delivery: seatpost wedge, rubber cover, storage bag, Di2 battery holder.12
  • Downtube storage cover latch can be finicky or insecure; some units require sanding paint to lock properly.12
  • Rear thru-axle length issues causing wheel play; first batch had wrong size.2
  • Proprietary aero seatpost with limited offset options; no zero-offset available from Longteng.2
  • Headset spacer rubbing against frame; requires modification or shims.2
  • Small chainring clearance issues with wide downtube; may need spacers or gravel crank.2
  • No serial number on frame.2

Key Facts

  • Frame weight: 970g (size 52 with paint) claimed by one source, but another measures 1160g including fork and accessories.2
  • Tire clearance: officially up to 38mm, but some users have fitted 40mm tires with about 3mm clearance on each side.2
  • Bottom bracket: T47 threaded, compatible with Shimano 24mm cranks.12
  • Carbon layup: mix of T800 and T1000 carbon.2
  • Price: $450-530 for frame/fork/seatpost.2
  • Seatpost: proprietary aero shape with ~20mm offset; no zero-offset option from Longteng.2
  • Headset: compatible with FSA ACR and SMR systems.2
  • Includes fork, headset, seatpost, axles, and derailleur hanger.1

Sources

  1. 1
    Man of a Certain AgeNew Bike Custom Build: Longteng RD301-D
  2. 2ChinertownNew frame: Longteng RD301-D

Reviews & Ratings

Man of a Certain Age
10:07
New Bike Custom Build: Longteng RD301-D

The reviewer discusses the LT RD301-D frame from Long Tang, an OEM manufacturer in China. He built his bike around this carbon fiber frame, describing it as an all-arounder Allroad bike. He notes that the frame came with a fork, headset, seatpost, axles, and derailleur hanger. The build process was smooth, with the mechanic finding the frame easy to work with, no alignment issues, and a perfect bottom bracket fit. However, there were minor issues with missing finishing kit parts (seatpost wedge and rubber cover) and a finicky internal storage cover. Overall, he is pleased with the frame quality.

November 13, 2024Watch on YouTube
Road Bike Frames, Wheels & Components on Chinertown4 months ago
New frame: Longteng RD301-D

The LT RD301-D is an all-road carbon frame from Longteng, offering a mix of aero features and wide tire clearance (up to 38mm). It weighs around 970-1160g for size 52, uses T800/T1000 carbon, and has a threaded T47 BB. The frame includes internal downtube storage and a proprietary aero seatpost. Price is around $450-530 for frame/fork/seatpost. Users report comfortable ride, neutral handling, and good acceleration, but note issues with the storage cover latch, rear thru-axle length, and missing accessories like seatpost wedge and rubber cover.

AI Summary

Pros

  • Wide tire clearance up to 38mm, allowing for all-road/light gravel use
  • Lightweight frame (970g for size 52 with paint)
  • Threaded T47 bottom bracket for easy maintenance and stiffness

more pros in the review

Cons

  • Downtube storage cover latch can be finicky or insecure; some units require sanding paint to lock properly
  • Rear thru-axle length issues causing wheel play; first batch had wrong size
  • Missing accessories: seatpost wedge, rubber cover, storage bag, Di2 battery holder

more cons in the review

Key Points

  • Frame weight: 970-1160g (size 52, with paint and hardware)
  • Tire clearance: up to 38mm (some users fit 40mm)
  • Bottom bracket: T47 threaded

more key points in the review

View Thread
Purchase

Where to Buy

· ltbikes.com
View Deals

Specifications

Attributes

Frame TypeRoad
Frame MaterialCarbon
Brake MountFlat Mount Disc
Bottom BracketT47
SeatpostProprietary
Front Axle12x100mm Thru-Axle
Rear Axle12x142mm Thru-Axle
Max Tire Width (mm)38
Headset Type1-1/8" → 1-1/4" Tapered (IS42/28.6 | IS47/33)
Di2 CompatibleYes
Max Chainring Size—
UDH Compatible—
Includes Cockpit—
UCI Legal—
Geometry on BikeInsights
Stack : Reach1.43
2024 Base
470500520540560580

Included Components

LT RD301-D
Frame
1,350g
Full Carbon T800 Fork
Fork
370g
Seatpost
Seatpost
—
Total Weight1,720g

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