RedBaronX
Member
WOW... I would be thoroughly shocked if THAT failed!
WOW... I would be thoroughly shocked if THAT failed!
steelfan41
Member
If I could only be so lucky. I bought my bike (first MB) used off Craig's list and got a whopper of a lemon. The frame only has vertical cuts for the hub/spindels to go through, no horizontal slots to allow for tire wiggle room at all. There is a very small margin of non-contact for my tensioner and the tire. I tore up 2 tires and 1 chain before going ultra-HD. No problems anymore.
V 35
Member
Check out the tensioner setup on a ' Sportsman ' Bike. A small roller that rides on a slot parallel to chainstay. I played with a medicine bottle to test the theroy. I'm impressed ! Sliding the bottle toward the sprocket tightens chain a very small amount of movement is needed as idler approaches sprocket.
On my next bike, I'll weld something equally phycadellic to both chainstays,
allowing very fine adjustment of both chains. I ' pledged ' my Huffy Cranbrook would use only Bolt On parts, as I don't want to weld to a new frame. Everything came out great, except the chain tensioners, which have been a heartbreaking money pit. I'm tempted to yank back the rear wheel, and say ' scr** them ' The thought of a jumped chain wrecking the new engine / sprocket, keeps the bike unfinished. It's like getting tackled on ' their ' 3 yard line. I spent the price of a new Huffy on various idlers, rollers and tensioners $ The Ball bearing Grubee roller is junk the ball bearing only goes in aprox 1/3 of the roller's ID, leaving the rest to flop. The Sleeve bearing one is much better, which isn't saying much. $ A mountain bike Chain Tensioner won't work with a coaster brake, the backwards force of braking is dissapated by the tensioner $ A steel roller seems like a bad idea [ Texas Idler ] $ The beautiful Singapore roller [ waited a month ] looked perfect in the photo, but is too bulky to fit in the narrow confines below engine $ I hacked up an old road bike deraileur in a mad quest for parts $ Metric Stuff isn't cheap the hardware store loves me. $ I'm tempted to buy another Cranbrook, dissassemble, and send frame to paint stripper. When bare metal comes back weld on motorbike components ;
Tabs for Gas Tank + Coil Mounts
Front Engine Mount
Tensioner Mounts [ Sportsman style ]
on both chainstays
Added gussets to rear stays
Drive Chain Guard mount
Exhaust Bracket
Torque Reaction Bracket
Clutch Improver bracket
Current Build = Huffy Cranbrook, Worksman Wheels, Felt Super Tires,
80cc Grubee Skyhawk MM Hub Cheapo Mt Bike Calipers / Combo lever
Domino Throttle, Alloy Non Slip pedals.
On my next bike, I'll weld something equally phycadellic to both chainstays,
allowing very fine adjustment of both chains. I ' pledged ' my Huffy Cranbrook would use only Bolt On parts, as I don't want to weld to a new frame. Everything came out great, except the chain tensioners, which have been a heartbreaking money pit. I'm tempted to yank back the rear wheel, and say ' scr** them ' The thought of a jumped chain wrecking the new engine / sprocket, keeps the bike unfinished. It's like getting tackled on ' their ' 3 yard line. I spent the price of a new Huffy on various idlers, rollers and tensioners $ The Ball bearing Grubee roller is junk the ball bearing only goes in aprox 1/3 of the roller's ID, leaving the rest to flop. The Sleeve bearing one is much better, which isn't saying much. $ A mountain bike Chain Tensioner won't work with a coaster brake, the backwards force of braking is dissapated by the tensioner $ A steel roller seems like a bad idea [ Texas Idler ] $ The beautiful Singapore roller [ waited a month ] looked perfect in the photo, but is too bulky to fit in the narrow confines below engine $ I hacked up an old road bike deraileur in a mad quest for parts $ Metric Stuff isn't cheap the hardware store loves me. $ I'm tempted to buy another Cranbrook, dissassemble, and send frame to paint stripper. When bare metal comes back weld on motorbike components ;
Tabs for Gas Tank + Coil Mounts
Front Engine Mount
Tensioner Mounts [ Sportsman style ]
on both chainstays
Added gussets to rear stays
Drive Chain Guard mount
Exhaust Bracket
Torque Reaction Bracket
Clutch Improver bracket
Current Build = Huffy Cranbrook, Worksman Wheels, Felt Super Tires,
80cc Grubee Skyhawk MM Hub Cheapo Mt Bike Calipers / Combo lever
Domino Throttle, Alloy Non Slip pedals.
Last edited:
Big Red
Active Member
Tensioner
Here's how I did it on a few of my OCC builds. I weigh 240lbs and it never broke there. The frame cracked in three different places, but never there. I've marked the places it did break and had to have welded. But the tensioner never gave me one minute of problems.
Thanks,
Big Red.
Here's how I did it on a few of my OCC builds. I weigh 240lbs and it never broke there. The frame cracked in three different places, but never there. I've marked the places it did break and had to have welded. But the tensioner never gave me one minute of problems.
Thanks,
Big Red.
