Please select your home edition
Upffront 2020 Foredeck Club SW LEADERBOARD

Bamar RLG EVO ROLLGEN Top-Down Furling System

by Phil Anniss 15 Jul 16:00 UTC
RLG EVO ROLLGEN Top-Down Furling System © Bamar

Introducing the Bamar ROLLGEN top-down furling system and why, at Upffront, we think this is a great product for cruising boats from 38-60 feet. Bamar is an Italian manufacturer of furling systems including in-mast mainsail furlers, captive winches and other systems for larger superyachts. They have a reputation for engineering quality and their RLG EVO Furlers are a simple but highly engineered range of small boat furlers.

Specifying top down furling systems

As a code zero furler they are excellent units, but it is the specification of the ROLLGEN top-down stay kit where the RLG EVO system stands out from the crowd. Most continuous line furlers were designed around the needs of bottom-up code zero furling. However, top-down furling requires a furling cable of significantly larger diameter, and this is where you have to be careful.

When specifying a top-down system, we always start by determining the correct diameter of the torsional cable. Once we know the cable diameter we can then assess which furlers have the jaw width to accommodate the cable thimble. Many in the industry will start by sizing the furler and then fit the cable to the furler, BUT most jaw widths were designed for bottom-up furling and therefore tend to be too small to fit the correct sized cable.

Safe working loads are relatively low for top-down furling systems, however, it is surprising how often we have to go UP a furler size to accommodate the correct cable.


The Bamar RLG EVO ROLLGEN system is a complete top-down furling package. It includes a standard furling drum and swivel, which can be used for bottom-up furling, plus what is called a ROLLGEN Stay Kit. This kit consists of a cut length of torsional rope, finished with a furling thimble at the upper end, which attaches to the top swivel. At the lower end is a custom termination which clamps the cable (cut to the required length on site) with two rows of grub screws. This fitting slots into the furling drum jaw but also incorporates a top down swivel adapter to attach the gennaker tack, allowing it to spin independently of the furling drum.

Industry standard torsional rope diameters are 7, 9, 11, 13 and 15mm, however the ROLLGEN system, specifically designed for top-down furling, has 13, 15 and 18mm standard diameters. Standard ROLLGEN Stay Kits are available for the RLG EVO 8, 10 and 20 furlers which have Safe Working Loads (SWL) of 2t, 3t and 5t respectively and are suitable for boats from approx. 38-60ft.

Take the RLG EVO 8 as an example. As a code zero furler the jaw width can accommodate a 9mm torsional rope and in the same size range (1.5-2t), Facnor, Karver, Selden, Ronstan can all accommodate similar 9 - 11 mm ropes. However, the ROLLGEN stay is 13mm, which is a perfect top down furling diameter in this load range. For the other brands, you would have to go up to 2.5t unit to fit a 13mm rope in the furler jaw, which can lead to increases in overall cost and weight.

The ROLLGEN Stay comes with a full length foam gaiter which also increases the diameter around which the sail furls, thus increasing the speed of the furl and protecting the sail and cable from abrasion / wear. As an optional extra, you can also incorporate a "Luff Control" device which is mounted on the cable above the tack swivel which allows you to adjust sail luff tension from the cockpit using a tack line, whilst sailing.


There will always be other factors which come into play, for example the Bamar RLG EVO furlers do NOT have drum locks, or there may be a good reason to go up a SWL size to ensure your unit can be used as a code zero furler as well. However, as a dedicated cruising top-down furler, we have found the Bamar ROLLGEN system is extremely well-positioned in terms of quality versus price and top-down furling performance, which is primarily driven by the correct torsional cable diameter.

If you have any questions about top-down furling or need help finding the right system for your boat, then please do not hesitate to contact . Otherwise, get more detailed information on the Bamar ROLLGEN system.

Related Articles

Wichard MXEvo 2:1/3:1 Blocks
Often imitated but tough to beat Wichard's expertise comes from over 100 years of forging safety parts for the manufacturing industry, so when it came to designing boat fittings, strength and safety have always been at the top of their priority list. Posted on 15 Oct
Antal Barber Block - Impeccable Design
Created specifically for barber-hauler or code zero tweaker systems It's no secret that we're big fans of the cool gadgets that Antal manufacture. These are often the subject of our blogs - previously, we've delved into the Antal Roller Cleat, the Antal Soft Loop Hook and the Antal Electric Winch Range, to name a few. Posted on 7 Oct
No Compromise Inflatable Yacht Fenders
Fendress fenders reviewed by Started 15 years ago in the French Riviera, Fendress are specialists in inflatable yacht fenders. These fenders are designed to be light, strong and ultra-resistant. Plus, they look great! Posted on 23 Sep
How to Choose a Spinlock Deckvest
The main consideration is usage and application Lifejacket pioneers Spinlock are renowned for their sleek, comfortable to wear, high-spec lifejackets. In a previous article, we introduced the full range of Deckvests and took a look at the features and benefits of each. Posted on 16 Sep
Best Sailing Boat Blocks in 2021
Review covers soft attach, snatch looper, open ring, beckets and more In this article we take a quick look at what is new and/or interesting in the sailing block world in 2021. Harken continue to develop soft attach blocks. Morfrac Systems are developing their product line to include becket versions of their blocks. Posted on 7 Sep
The C-Tech SnuffAir - Lighter than Air
Manage spinnakers in a safe, controlled way With large sails, strong winds and small crews, even the most experienced sailors need some extra help. The C-Tech SnuffAir snuffer allows larger sailboats to more easily manage spinnakers in a safe, controlled way. Posted on 26 Aug
Antal Roller Cleat reviewed
A sleek solution for mooring Italian manufacturer Antal produce a lot of cool products that we find are hugely popular on From their blocks to their winches, Antal products seem to strike the perfect balance between cost, quality and innovation. Posted on 19 Aug
Choosing the right shackle
Why bow shackles are curved, and what a soft shackle cannot do Many shackles and connectors are functionally very similar, so it can be difficult to know exactly what shackle is best for each application. That's why we have put together this article to walk you through all of the types. Posted on 11 Aug
Harken Electric Winch Range Explained
Motor configurations and grip options broken down by Harken have long been a popular choice for winches due to their quality, with their winches aboard everything from the smallest sportsboats to the largest mega yachts. Posted on 29 Jul
Introducing the Spinlock Deckvest Range
Compact, comfortable to wear and unobtrusive says When it comes to safety, we know you want the best for yourself and your crew. Just launched in the website 'Safety' category are Spinlock Deckvests: the world-renowned go-to lifejacket for hobby sailors, offshore cruisers and racers alike. Posted on 22 Jul
Upffront 2020 Foredeck Club SW FOOTER