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77DESIGNZ Chainguide Oval Guide BB-38 | BSA

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Product weight: 25 g
Brands: 77designz

49,90 €
MSRP: 49,90 €

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Product details


77DESIGNZ Chain Guide Oval Guide BB-38 | BSA

Since oval chainrings are very popular with many of you, 77Designz also offers the lightest, fully adjustable chain guide on the market with its Oval Guide. This variant can also be mounted on bikes without mounting options for chain guides using the bottom bracket clamp. The chain is held securely in any position on the oval chainring. The milled scale makes it easier to set the chainring size and adjusting the chain line line is child's play using the table and spacers provided. Thanks to the front-flip technology, you can remove the chain without tools in the event of a breakdown on the trail, or pull the crank out of the bottom bracket for service without having to dismantle the chain guide. The variants marked with the 38 have an adjustment range of the chainrings from 26-38 teeth.

77designz benefits from years of experience in frame construction and today develops light bike parts for mountain bikes such as single chain guides, crash plates, stems and the legendary bottle opener. The creative head and founder of 77designz is Giacomo Großehagenbrock. He is not only responsible for the design of all products, but also brings ideas for new concepts with him. In addition to the experience from his earlier work as a precision mechanic, he also completed a diploma as a graphic designer. His creative madness and technical sobriety are of great benefit to the development of 77designz, always resulting in highly innovative products. Stefan is a mechanical engineer, he is responsible for the civil works, the technical documentation of the components and the industrial customers like He communicates with production partners and drives the further development of existing parts.

Technical specifications:

Material: Aluminum 7075 T6
Assembly: BSA BB (inner bearing clamping using BSA bottom bracket)
Required tools: Torx 25 wrench, suitable bottom bracket wrench for your existing BSA bottom bracket
Capacity: 28-38T Round, 26-36 Oval
adjustable chain line : 48 mm - 53 mm (BOOST ready)
Compatibility: 1x cranks (1x10, 1x11 or 1x12)
Compatibility chainrings: round and oval
Color: Black

Weight according to the manufacturer: 20.4 g
Weight weighed:

Scope of delivery:
1x 77DESIGNZ chain guide Oval Guide BB-38 | BSA
1x Chainline Spacer Set

- Not compatible with Bionicon and Garbaruk Direct Mount Oval chainrings in sizes 30T/28T/26T due to the too narrow chain line .
- Only works with 1x10 drivetrains if you use a friction-damped rear derailleur and an N/W chainring.