Hand Guard Extensions - 3D printing

yen_powell

Active Member
Joined
Jun 19, 2018
Messages
81
Location
UK
Just wanted to say, I have had the handguard extensions fitted for a few weeks now and I'm really pleased with them. I wear short gloves and cold air getting up the sleeves in winter can sometimes be annoying, now I get no draught up the sleeves at all and my heated grips feel more effective now there is less wind blowing over them. Came home from work on the motorway last night and I promised myself that I should put something on here about how good they are.
 

Synk

Member
Joined
Sep 7, 2020
Messages
37
Location
Poland
I made my first modification - resin and carbon fiber. As a my first time - they have some "small shortcomings"172651294_747247532650711_1394721473219118430_n.jpg
 

yen_powell

Active Member
Joined
Jun 19, 2018
Messages
81
Location
UK
Just wanted to say, I have had the handguard extensions fitted for a few weeks now and I'm really pleased with them. I wear short gloves and cold air getting up the sleeves in winter can sometimes be annoying, now I get no draught up the sleeves at all and my heated grips feel more effective now there is less wind blowing over them. Came home from work on the motorway last night and I promised myself that I should put something on here about how good they are.
I lost my left hand extension last week. It left me and disappeared down the motorway as I was making progress past some lorries. I am very impressed with them, straight away as the left one flew over my shoulder I got cold up one arm only, the other arm was still draught free and warm. I'm going to order another pair soon and may look at putting a few self tappers to keep them from leaving me again. Best addition to my bike so far I reckon.
 

WJBertrand

Ventura Highway
Joined
Jun 20, 2015
Messages
3,401
Location
Ventura, CA
I lost my left hand extension last week. It left me and disappeared down the motorway as I was making progress past some lorries. I am very impressed with them, straight away as the left one flew over my shoulder I got cold up one arm only, the other arm was still draught free and warm. I'm going to order another pair soon and may look at putting a few self tappers to keep them from leaving me again. Best addition to my bike so far I reckon.
I feared that could happen so I installed a little insurance in the form of a small drilled hole and a tie-wrap.





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Synk

Member
Joined
Sep 7, 2020
Messages
37
Location
Poland
I have sold over 40 pairs and what did I observe? That shields like to "fly off" at speeds over 100 mph (160 km / h). It flew away in two people. So now I recommend applying a drop of silicone to each end of the groove.
 

yen_powell

Active Member
Joined
Jun 19, 2018
Messages
81
Location
UK
I have sold over 40 pairs and what did I observe? That shields like to "fly off" at speeds over 100 mph (160 km / h). It flew away in two people. So now I recommend applying a drop of silicone to each end of the groove.
I agree, I should have done something to make them more secure, totally my own fault. They do grip well normally so I thought they would stay on, I also have a suspicion that someone may have interfered with the one that went as I had an encounter with a beggar in east London who was by my bike whilst I was inside a shop not long before.
 

Synk

Member
Joined
Sep 7, 2020
Messages
37
Location
Poland
I hear that the handguard extensions sometimes fly off. After discussions with Polish colleagues, a simple solution emerged. No glue needed, and the extensions can still be dismantled. The idea is that on the edge of the sheath, on the lower lip, 2 holes need to be made, 3mm from the edge (or about 4mm for up to 3.2mm). A hole of diameter 2.5 (for M3) or 3.2 (for M4) should be made. In place of the holes, use a pressure pin with a cone, DIN914. You do not need a tap as the screw will cut the thread in the plastic by itself. After mounting, tighten so that the pin is hidden in the cover. For M3 we use a 1.5 hexagon socket, and for M4 we use a 2mm hexagon socket. Below are photos that will help you understand the ideas. You can use, for example, M4 screws of similar length instead of dowels.
1624365764089.png 1624365788739.png 1624365812069.png 1624365843824.png 1624365910890.png 1624366101719.png 1624366015025.png1624365966498.png
 
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