Andrews TW21 Chain Drive Camshafts - 288121
$524.99
Andrews TW21 Chain Drive Camshafts - 288121 Item # 210487
Description
Features:
- Splined chain drive camshafts
- Kits include: Cams and 1 Ball Bearing (Bearing only included in 1999-2006 models)
- Designed for use with stock Harley-Davidson hydraulic lifters
- Can be installed on both carbureted and fuel-injected models
- More torque for all around 1170-5200 RPM range
- Similar to EV23 for Evolution
- NOTE: Installer must check coil bind, valve-to-valve clearance and valve-to-piston clearance
- Intake Opening (degrees): 10
- Intake Closing (degrees): 30
- Exhaust Opening (degrees): 40
- Exhaust Closing (degrees): 8
- Intake Duration (degrees): 220
- Exhaust Duration (degrees): 228
- Intake Lift (in): .498
- Exhaust Lift (in): .498
Note: Roller bearing is sold separately. Please refer to the instructions to find out if reusing your existing roller bearings is possible.
Part Numbers for Andrews TW21 Chain Drive Camshafts - 288121
Reviews
Rated 5 out of
5
by
Rob P from
Andrews TW21 Cams - Great Improvement!
Installed the TW21 cams into my stock 1999 Twin Cam 88 (MM Injector) along with new inner cam bearings and tensioner shoes, and I have to say that the low, and especially the high-mid RPM range pick up is quite improved over stock. Roll on in top gear quite a bit more lively, and there seems less need to drop a gear on hills two up. I used the PC2 tuner that's already on the bike to manually tune things and it has been going great.
Date published: 2025-07-28
Rated 4 out of
5
by
Roadking77 from
Read the description
This kit only comes with 1 ball bearing no roller bearing, description is very misleading. Also for 600$ wouldn’t kill them to throw a sticker in.
Date published: 2025-01-13