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HS-Bumbee P. CA349F/R-4~5SP (CE) (RATCHET)

*This item is limited to Brompton P-line models.* Only use Hubsmith carbon fiber brake pads.

$1,550 USD Exclude delivery fee, any applicable customs duties and tax charges.
Bumbee P. CA349 (RATCHET) launched a new zero-time planar tooth ratchet for the ratchet body drive structure. During the 360-degree driving process, the zero-time planar tooth ratchet body has two parallel tooth surfaces (48 teeth) to achieve a zero-gap occlusal action at the same time. The complete occlusal and propulsion allows the driving performance to be more directly output. In addition, the zero-time planar tooth-type occlusal structure is more durable than traditional pawls.
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0
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1 Year Warranty
(limited warranty)
7-10 days shipping
Packaging of Hubsimth Cartoon

DESCRIPTION

  • Zero-time planar tooth ratchet freehub, driving performance to be more directly output.
  • The brake side features a milled groove drainage design to enhance braking performance.
  • Lightweight 349 carbon fiber wheelset.
  • High-precision smooth and wear-resistant ceramic bearing.
  • Exclusive drilling angles for hubs and spoke holes. (reduce the corner angle )
  • All hand built by wheel-building technicians.
  • Hubsmith high Tensile and high-pressure rim tape.

SPECIFICATION

Wheel Size
16"
Material
3K carbon fiber brake/ UD carbon rim
Rim Type
Clincher
Brake Interface
Rim Brake(with brake pads)
Rim Depth
38mm
Inner Width
18mm
Outer Width
25mm
Fork Width
ø8*74mm
Frame Width
M5*112mm
Spoke Count
20H
Max Tire Pressure
110psi
Freehub Body Compatible (RATCHET)
Shimano 4SP (It can be installed to 5 speeds, suitable for Shimano freewheels.)
Bearings
Precision ceramic bearings
Quick Release
HS-QR25
Weight
(F) 385±20g / (R) 546±20g (excluding skewers and rim tape)

KEY TECHNOLOGY

New zero-time planar tooth ratchet

New zero-time planar tooth ratchet

The Hubsmith R&D team launched a new zero-time planar tooth ratchet for the ratchet body drive structure. During the 360-degree driving process, the zero-time planar tooth ratchet body has two parallel tooth surfaces (48 teeth) to achieve a zero-gap occlusal action at the same time. The complete occlusal and propulsion allows the driving performance to be more directly output. In addition, the zero-time planar tooth-type occlusal structure is more durable than traditional pawls.

3K carbon brake track design

3K carbon brake track design

The brake side is equipped with a 3K carbon weave pattern and a 360-degree circular groove drainage design, which effectively enhances braking performance during the braking process.

Precision ceramic bearings

Precision ceramic bearings

High-precision smooth and wear-resistant ceramic bearing.

Wing spoke

Wing spoke

The WING SPOKE was designed to outperform the current crop of high-end spokes that are found on today’s finest racing wheels. The WING is more than just another lightweight, bladed spoke. Inspired by the nose cone of an airplane, it offers the highest level of aerodynamic performance of any spoke on the market today. Wheel builders will also appreciate the ease of working with the WING. Its one-piece, butted design reduces potential weak spots, while its rigidity helps prevent twisting or breakage when tensioning.

Hand-built wheels

Hand-built wheels

Using precise measuring equipment and specialized tool, our technicians adjust and correct lateral and radial deviation and center the rim.

PAY METHOD & NOTICE

  Payment Method

這是一張圖
  • Please note that all product prices do not include customs duties and shipping charges.
  • Items billed in New Taiwan Dollars are only available for inland shipping on the mainland of Taiwan.
  • Please be sure to confirm that your order content, specifications, details, and amount are correct before checkout. Once the order remittance is completed, the order content cannot be modified.

  Delivery

這是一張圖
  • About 3-5 working days for domestic shipping. (excluding holidays and national holidays)
  • About 7-10 working days for international shipping. (excluding holidays and national holidays)

  Warranty Issue

  • The wheelset provides a one-year limited warranty worldwide. Please log in and register within 30 days of receiving the product.
  • For online warranty terms, please click "Me".


  Notice

  • If the product is out of stock, we will notify you as soon as possible and assist you to change the order, and the delivery days will be extended.
  • Before unpack and install, please make sure that you have the corresponding tools at hand to properly remove and install the wheel set. Make sure that the front and rear quick releases are securely locked to the fork and lock each time you ride.
  • For riders using Cinch Release and Hubsmith Hub Cinch, please make sure that the locking end is hand-locked with the 1.5mm hex version and cannot be removed. For the movable end, use a 2mm hexagonal wrench to lock the nut on the movable end until the upper wheel is installed, and it cannot be disassembled. (Both 1.5mm and 2mm hex wrenches comes with the delivery)
  • It is normal for metal processing products to have 5%~10% processing marks during the production process.
  • A spare parts box (including product instruction manual, warranty card, quick release, Hub Cinch (anti-loosening nut), etc.) is included with the ordered wheel set (including spokes, copper (aluminum) nipples, 1 set for each). (Note! The contents will vary according to different models).
  • The Hubsmith brake pads come with the purchase of the V-brake wheelset to increase the safety of the product.
  • Due to the lightweight design of the wheelset, please note that the combined rider and luggage load does not exceed 100kg. For the correct riding and assembly method of the product, please refer to the product manual.
  • Please note that it is normal for product photos to have color differences due to differences in different screen monitor.

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